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Irssi

32 CVEs product

Monthly

CVE-2023-29132 Apr 14, 01:15 MEDIUM This Month

Irssi 1.3.x and 1.4.x before 1.4.4 has a use-after-free because of use of a stale special collector reference. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Use After Free Memory Corruption Irssi
NVD
CVSS 3.1
5.3
EPSS
0.8%
CVE-2020-29602 Dec 08, 16:15 CRITICAL Act Now

The official irssi docker images before 1.1-alpine (Alpine specific) contain a blank password for a root user. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Docker Irssi Docker Image
NVD GitHub
CVSS 3.1
9.8
EPSS
2.2%
CVE-2019-15717 Aug 29, 17:15 CRITICAL Act Now

Irssi 1.2.x before 1.2.2 has a use-after-free if the IRC server sends a double CAP. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Use After Free Memory Corruption Canonical Ubuntu Linux +1
NVD
CVSS 3.0
9.8
EPSS
2.5%
CVE-2019-13045 Jun 29, 14:15 HIGH PATCH This Week

Irssi before 1.0.8, 1.1.x before 1.1.3, and 1.2.x before 1.2.1, when SASL is enabled, has a use after free when sending SASL login to the server. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required.

Denial Of Service Use After Free Memory Corruption Irssi
NVD GitHub
CVSS 3.0
8.1
EPSS
3.3%
CVE-2019-5882 Jan 09, 23:29 CRITICAL PATCH Act Now

Irssi 1.1.x before 1.1.2 has a use after free when hidden lines are expired from the scroll buffer. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Denial Of Service Use After Free Memory Corruption Canonical Ubuntu Linux +1
NVD GitHub
CVSS 3.0
9.8
EPSS
2.5%
CVE-2018-7054 Feb 15, 20:29 CRITICAL Act Now

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Use After Free Memory Corruption Debian Canonical +3
NVD
CVSS 3.0
9.8
EPSS
2.4%
CVE-2018-7053 Feb 15, 20:29 CRITICAL Act Now

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Use After Free Memory Corruption Debian Canonical +3
NVD
CVSS 3.0
9.8
EPSS
2.5%
CVE-2018-7052 Feb 15, 20:29 HIGH This Week

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Null Pointer Dereference Microsoft Debian Canonical +3
NVD
CVSS 3.0
7.5
EPSS
2.4%
CVE-2018-7051 Feb 15, 20:29 HIGH This Week

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Information Disclosure Debian Canonical Debian Linux +2
NVD
CVSS 3.0
7.5
EPSS
2.5%
CVE-2018-7050 Feb 15, 20:29 HIGH This Week

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Null Pointer Dereference Debian Canonical Debian Linux +2
NVD
CVSS 3.0
7.5
EPSS
2.4%
CVE-2018-5208 Jan 06, 16:29 CRITICAL PATCH Act Now

In Irssi before 1.0.6, a calculation error in the completion code could cause a heap buffer overflow when completing certain strings. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Buffer Overflow Debian Debian Linux Irssi
NVD
CVSS 3.0
9.8
EPSS
2.4%
CVE-2018-5207 Jan 06, 16:29 HIGH PATCH This Week

When using an incomplete variable argument, Irssi before 1.0.6 may access data beyond the end of the string. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Information Disclosure Debian Debian Linux Irssi
NVD
CVSS 3.0
7.5
EPSS
1.9%
CVE-2018-5206 Jan 06, 16:29 CRITICAL PATCH Act Now

When the channel topic is set without specifying a sender, Irssi before 1.0.6 may dereference a NULL pointer. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

Denial Of Service Null Pointer Dereference Debian Debian Linux Irssi
NVD
CVSS 3.0
9.8
EPSS
2.2%
CVE-2018-5205 Jan 06, 16:29 HIGH PATCH This Week

When using incomplete escape codes, Irssi before 1.0.6 may access data beyond the end of the string. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Information Disclosure Debian Canonical Debian Linux Ubuntu Linux +1
NVD
CVSS 3.0
7.5
EPSS
2.4%
CVE-2017-15723 Oct 22, 20:29 HIGH PATCH This Week

In Irssi before 1.0.5, overlong nicks or targets may result in a NULL pointer dereference while splitting the message. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Denial Of Service Null Pointer Dereference Debian Debian Linux Irssi
NVD
CVSS 3.0
7.5
EPSS
0.6%
CVE-2017-15722 Oct 22, 20:29 MEDIUM PATCH This Month

In certain cases, Irssi before 1.0.5 may fail to verify that a Safe channel ID is long enough, causing reads beyond the end of the string. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.

Buffer Overflow Information Disclosure Debian Debian Linux Irssi
NVD
CVSS 3.0
5.9
EPSS
0.7%
CVE-2017-15721 Oct 22, 20:29 HIGH PATCH This Week

In Irssi before 1.0.5, certain incorrectly formatted DCC CTCP messages could cause a NULL pointer dereference. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Denial Of Service Null Pointer Dereference Debian Debian Linux Irssi
NVD
CVSS 3.0
7.5
EPSS
0.7%
CVE-2017-15228 Oct 22, 20:29 HIGH PATCH This Week

Irssi before 1.0.5, when installing themes with unterminated colour formatting sequences, may access data beyond the end of the string. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.

Buffer Overflow Information Disclosure Irssi
NVD
CVSS 3.0
7.5
EPSS
0.4%
CVE-2017-15227 Oct 22, 20:29 HIGH PATCH This Week

Irssi before 1.0.5, while waiting for the channel synchronisation, may incorrectly fail to remove destroyed channels from the query list, resulting in use-after-free conditions when updating the. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Information Disclosure Use After Free Memory Corruption Irssi
NVD
CVSS 3.0
7.5
EPSS
0.4%
CVE-2017-10966 Jul 07, 14:29 CRITICAL PATCH Act Now

An issue was discovered in Irssi before 1.0.4. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Information Disclosure Use After Free Memory Corruption Irssi
NVD GitHub
CVSS 3.0
9.8
EPSS
0.8%
CVE-2017-10965 Jul 07, 14:29 CRITICAL PATCH Act Now

An issue was discovered in Irssi before 1.0.4. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

Denial Of Service Null Pointer Dereference Irssi
NVD GitHub
CVSS 3.0
9.8
EPSS
1.5%
CVE-2017-9469 Jun 07, 01:29 HIGH PATCH This Week

In Irssi before 1.0.3, when receiving certain incorrectly quoted DCC files, it tries to find the terminating quote one byte before the allocated memory. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Buffer Overflow vulnerability could allow attackers to corrupt memory to execute arbitrary code or crash the application.

Buffer Overflow Debian Debian Linux Irssi
NVD
CVSS 3.0
7.5
EPSS
1.4%
CVE-2017-9468 Jun 07, 01:29 HIGH PATCH This Week

In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

Denial Of Service Null Pointer Dereference Debian Debian Linux Irssi
NVD
CVSS 3.0
7.5
EPSS
0.8%
CVE-2017-7191 Mar 27, 17:59 CRITICAL PATCH Act Now

The netjoin processing in Irssi 1.x before 1.0.2 allows attackers to cause a denial of service (use-after-free) and possibly execute arbitrary code via unspecified vectors. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

RCE Denial Of Service Use After Free Memory Corruption Irssi
NVD GitHub
CVSS 3.0
9.8
EPSS
2.6%
CVE-2017-5356 Mar 03, 15:59 HIGH POC PATCH This Week

Irssi before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a string containing a formatting sequence (%[) without a closing bracket (]). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Buffer Overflow Denial Of Service Information Disclosure Debian Debian Linux +1
NVD
CVSS 3.0
7.5
EPSS
2.8%
CVE-2017-5196 Mar 03, 15:59 HIGH PATCH This Week

Irssi 0.8.18 before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via vectors involving strings that are not UTF8. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Buffer Overflow Denial Of Service Information Disclosure Irssi
NVD
CVSS 3.0
7.5
EPSS
1.1%
CVE-2017-5195 Mar 03, 15:59 HIGH PATCH This Week

Irssi 0.8.17 before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a crafted ANSI x8 color code. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Buffer Overflow Denial Of Service Information Disclosure Irssi
NVD
CVSS 3.0
7.5
EPSS
1.1%
CVE-2017-5194 Mar 03, 15:59 HIGH PATCH This Week

Use-after-free vulnerability in Irssi before 0.8.21 allows remote attackers to cause a denial of service (crash) via an invalid nick message. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Denial Of Service Use After Free Memory Corruption Debian Debian Linux +1
NVD
CVSS 3.0
7.5
EPSS
1.9%
CVE-2017-5193 Mar 03, 15:59 HIGH PATCH This Week

The nickcmp function in Irssi before 0.8.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a message without a nick. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Denial Of Service Null Pointer Dereference Debian Debian Linux Irssi
NVD
CVSS 3.0
7.5
EPSS
1.9%
CVE-2016-7553 Feb 27, 22:59 LOW PATCH Monitor

The buf.pl script before 2.20 in Irssi before 0.8.20 uses weak permissions for the scrollbuffer dump file created between upgrades, which might allow local users to obtain sensitive information from. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity.

Information Disclosure Irssi Buf Pl
NVD GitHub
CVSS 3.0
3.3
EPSS
0.1%
CVE-2016-7045 Sep 27, 15:59 HIGH POC This Week

The format_send_to_gui function in the format parsing code in Irssi before 0.8.20 allows remote attackers to cause a denial of service (heap corruption and crash) via vectors involving the length of. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Buffer Overflow Denial Of Service Debian Canonical Debian Linux +2
NVD
CVSS 3.0
7.5
EPSS
1.9%
CVE-2016-7044 Sep 27, 15:59 HIGH POC This Week

The unformat_24bit_color function in the format parsing code in Irssi before 0.8.20, when compiled with true-color enabled, allows remote attackers to cause a denial of service (heap corruption and. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Buffer Overflow Denial Of Service Debian Canonical Debian Linux +2
NVD
CVSS 3.0
7.5
EPSS
1.9%
EPSS 1% CVSS 5.3
MEDIUM This Month

Irssi 1.3.x and 1.4.x before 1.4.4 has a use-after-free because of use of a stale special collector reference. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Use After Free Memory Corruption +1
NVD
EPSS 2% CVSS 9.8
CRITICAL Act Now

The official irssi docker images before 1.1-alpine (Alpine specific) contain a blank password for a root user. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Docker Irssi +1
NVD GitHub
EPSS 2% CVSS 9.8
CRITICAL Act Now

Irssi 1.2.x before 1.2.2 has a use-after-free if the IRC server sends a double CAP. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Use After Free Memory Corruption +3
NVD
EPSS 3% CVSS 8.1
HIGH PATCH This Week

Irssi before 1.0.8, 1.1.x before 1.1.3, and 1.2.x before 1.2.1, when SASL is enabled, has a use after free when sending SASL login to the server. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required.

Denial Of Service Use After Free Memory Corruption +1
NVD GitHub
EPSS 3% CVSS 9.8
CRITICAL PATCH Act Now

Irssi 1.1.x before 1.1.2 has a use after free when hidden lines are expired from the scroll buffer. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Denial Of Service Use After Free Memory Corruption +3
NVD GitHub
EPSS 2% CVSS 9.8
CRITICAL Act Now

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Use After Free Memory Corruption +5
NVD
EPSS 2% CVSS 9.8
CRITICAL Act Now

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Use After Free Memory Corruption +5
NVD
EPSS 2% CVSS 7.5
HIGH This Week

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Null Pointer Dereference Microsoft +5
NVD
EPSS 2% CVSS 7.5
HIGH This Week

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Buffer Overflow Information Disclosure Debian +4
NVD
EPSS 2% CVSS 7.5
HIGH This Week

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Null Pointer Dereference Debian +4
NVD
EPSS 2% CVSS 9.8
CRITICAL PATCH Act Now

In Irssi before 1.0.6, a calculation error in the completion code could cause a heap buffer overflow when completing certain strings. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Buffer Overflow Debian Debian Linux +1
NVD
EPSS 2% CVSS 7.5
HIGH PATCH This Week

When using an incomplete variable argument, Irssi before 1.0.6 may access data beyond the end of the string. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Information Disclosure Debian Debian Linux +1
NVD
EPSS 2% CVSS 9.8
CRITICAL PATCH Act Now

When the channel topic is set without specifying a sender, Irssi before 1.0.6 may dereference a NULL pointer. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

Denial Of Service Null Pointer Dereference Debian +2
NVD
EPSS 2% CVSS 7.5
HIGH PATCH This Week

When using incomplete escape codes, Irssi before 1.0.6 may access data beyond the end of the string. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Information Disclosure Debian Canonical +3
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

In Irssi before 1.0.5, overlong nicks or targets may result in a NULL pointer dereference while splitting the message. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Denial Of Service Null Pointer Dereference Debian +2
NVD
EPSS 1% CVSS 5.9
MEDIUM PATCH This Month

In certain cases, Irssi before 1.0.5 may fail to verify that a Safe channel ID is long enough, causing reads beyond the end of the string. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.

Buffer Overflow Information Disclosure Debian +2
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

In Irssi before 1.0.5, certain incorrectly formatted DCC CTCP messages could cause a NULL pointer dereference. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Denial Of Service Null Pointer Dereference Debian +2
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Irssi before 1.0.5, when installing themes with unterminated colour formatting sequences, may access data beyond the end of the string. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.

Buffer Overflow Information Disclosure Irssi
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Irssi before 1.0.5, while waiting for the channel synchronisation, may incorrectly fail to remove destroyed channels from the query list, resulting in use-after-free conditions when updating the. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Information Disclosure Use After Free Memory Corruption +1
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

An issue was discovered in Irssi before 1.0.4. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Information Disclosure Use After Free Memory Corruption +1
NVD GitHub
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

An issue was discovered in Irssi before 1.0.4. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

Denial Of Service Null Pointer Dereference Irssi
NVD GitHub
EPSS 1% CVSS 7.5
HIGH PATCH This Week

In Irssi before 1.0.3, when receiving certain incorrectly quoted DCC files, it tries to find the terminating quote one byte before the allocated memory. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Buffer Overflow vulnerability could allow attackers to corrupt memory to execute arbitrary code or crash the application.

Buffer Overflow Debian Debian Linux +1
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This NULL Pointer Dereference vulnerability could allow attackers to crash the application by dereferencing a null pointer.

Denial Of Service Null Pointer Dereference Debian +2
NVD
EPSS 3% CVSS 9.8
CRITICAL PATCH Act Now

The netjoin processing in Irssi 1.x before 1.0.2 allows attackers to cause a denial of service (use-after-free) and possibly execute arbitrary code via unspecified vectors. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

RCE Denial Of Service Use After Free +2
NVD GitHub
EPSS 3% CVSS 7.5
HIGH POC PATCH This Week

Irssi before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a string containing a formatting sequence (%[) without a closing bracket (]). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Buffer Overflow Denial Of Service Information Disclosure +3
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Irssi 0.8.18 before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via vectors involving strings that are not UTF8. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Buffer Overflow Denial Of Service Information Disclosure +1
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Irssi 0.8.17 before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a crafted ANSI x8 color code. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Buffer Overflow Denial Of Service Information Disclosure +1
NVD
EPSS 2% CVSS 7.5
HIGH PATCH This Week

Use-after-free vulnerability in Irssi before 0.8.21 allows remote attackers to cause a denial of service (crash) via an invalid nick message. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.

Denial Of Service Use After Free Memory Corruption +3
NVD
EPSS 2% CVSS 7.5
HIGH PATCH This Week

The nickcmp function in Irssi before 0.8.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a message without a nick. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Denial Of Service Null Pointer Dereference Debian +2
NVD
EPSS 0% CVSS 3.3
LOW PATCH Monitor

The buf.pl script before 2.20 in Irssi before 0.8.20 uses weak permissions for the scrollbuffer dump file created between upgrades, which might allow local users to obtain sensitive information from. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity.

Information Disclosure Irssi Buf Pl
NVD GitHub
EPSS 2% CVSS 7.5
HIGH POC This Week

The format_send_to_gui function in the format parsing code in Irssi before 0.8.20 allows remote attackers to cause a denial of service (heap corruption and crash) via vectors involving the length of. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Buffer Overflow Denial Of Service Debian +4
NVD
EPSS 2% CVSS 7.5
HIGH POC This Week

The unformat_24bit_color function in the format parsing code in Irssi before 0.8.20, when compiled with true-color enabled, allows remote attackers to cause a denial of service (heap corruption and. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Buffer Overflow Denial Of Service Debian +4
NVD

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