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CWE-196

Unsigned to Signed Conversion Error

5 CVEs Avg CVSS 7.7 MITRE
2
CRITICAL
2
HIGH
1
MEDIUM
0
LOW
0
POC
0
KEV

Monthly

CVE-2026-14454 Jul 08, 12:30 CRITICAL PATCH Act Now

Denial of service in the Imager image-processing module for Perl (all versions before 1.033) allows remote attackers to crash a worker process by submitting an image whose EXIF IFD entry count is mishandled as a signed integer, triggering an near-address-space-sized memory allocation that fails and aborts the process. Any application that passes untrusted images through Imager's EXIF parsing is exposed. There is no public exploit identified at time of analysis, EPSS is low (0.18%, 8th percentile), and it is not listed in CISA KEV.

Information Disclosure Imager Tonyc
NVD GitHub VulDB
CVSS 3.1
9.8
EPSS
0.2%
CVE-2026-34155 Mar 31, 13:28 HIGH PATCH This Week

Integer overflow in RAUC versions prior to 1.15.2 allows signature bypass on 'plain' format bundles exceeding 2 GiB payload size, enabling attackers with bundle modification capability to alter unverified payload portions while retaining a valid signature. This affects embedded Linux systems relying on RAUC for secure firmware updates.

Buffer Overflow Rauc
NVD GitHub VulDB
CVSS 4.0
7.2
EPSS
0.0%
CVE-2026-58317 Jul 17, 04:14 MEDIUM This Month

Out-of-bounds memory read and write in Tera Term's TTSSH2 SSH plugin exposes users who connect to attacker-controlled SSH servers to memory disclosure and potential client crashes. The root cause is an unsigned-to-signed integer conversion error (CWE-196) in the SSH connection handshake code, which can cause internal memory contents to be transmitted to the malicious server. No public exploit code has been identified at time of analysis, and no KEV listing exists, but the network-reachable nature with no privilege requirement on the attacker side makes social-engineering lures a realistic delivery vector.

Buffer Overflow Ttssh2
NVD VulDB
CVSS 4.0
5.1
EPSS
0.3%
CVE-2023-0185 Apr 01, 05:15 HIGH This Week

NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer, where sign conversion issuescasting an unsigned primitive to signed may lead to denial of service or information. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity. No vendor patch available.

Denial Of Service Information Disclosure Linux Nvidia Virtual Gpu
NVD
CVSS 3.1
7.1
EPSS
0.2%
CVE-2022-36025 Sep 24, 02:15 Maven CRITICAL PATCH Act Now

Besu is a Java-based Ethereum client. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Besu Linuxfoundation
NVD GitHub
CVSS 3.1
9.1
EPSS
0.9%
EPSS 0% CVSS 9.8
CRITICAL PATCH Act Now

Denial of service in the Imager image-processing module for Perl (all versions before 1.033) allows remote attackers to crash a worker process by submitting an image whose EXIF IFD entry count is mishandled as a signed integer, triggering an near-address-space-sized memory allocation that fails and aborts the process. Any application that passes untrusted images through Imager's EXIF parsing is exposed. There is no public exploit identified at time of analysis, EPSS is low (0.18%, 8th percentile), and it is not listed in CISA KEV.

Information Disclosure Imager Tonyc
NVD GitHub VulDB
EPSS 0% CVSS 7.2
HIGH PATCH This Week

Integer overflow in RAUC versions prior to 1.15.2 allows signature bypass on 'plain' format bundles exceeding 2 GiB payload size, enabling attackers with bundle modification capability to alter unverified payload portions while retaining a valid signature. This affects embedded Linux systems relying on RAUC for secure firmware updates.

Buffer Overflow Rauc
NVD GitHub VulDB
EPSS 0% CVSS 5.1
MEDIUM This Month

Out-of-bounds memory read and write in Tera Term's TTSSH2 SSH plugin exposes users who connect to attacker-controlled SSH servers to memory disclosure and potential client crashes. The root cause is an unsigned-to-signed integer conversion error (CWE-196) in the SSH connection handshake code, which can cause internal memory contents to be transmitted to the malicious server. No public exploit code has been identified at time of analysis, and no KEV listing exists, but the network-reachable nature with no privilege requirement on the attacker side makes social-engineering lures a realistic delivery vector.

Buffer Overflow Ttssh2
NVD VulDB
EPSS 0% CVSS 7.1
HIGH This Week

NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer, where sign conversion issuescasting an unsigned primitive to signed may lead to denial of service or information. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity. No vendor patch available.

Denial Of Service Information Disclosure Linux +2
NVD
EPSS 1% CVSS 9.1
CRITICAL PATCH Act Now

Besu is a Java-based Ethereum client. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure Besu Linuxfoundation
NVD GitHub

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