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Haxx

Vendor security scorecard – 171 CVEs in the selected period

Period: 30d 90d 6m 1y All
Risk 1166
171
CVEs
35
Critical
57
High
0
KEV
73
PoC
27
Unpatched C/H
64.9%
Patch Rate
3.7%
Avg EPSS

Severity Breakdown

CRITICAL
35
HIGH
57
MEDIUM
68
LOW
11

Monthly CVE Trend

Top Risky CVEs

CVE Summary Severity CVSS EPSS Priority Signals
CVE-2013-0249 Stack-based buffer overflow in the Curl_sasl_create_digest_md5_message function in lib/curl_sasl.c in curl and libcurl 7.26.0 through 7.28.1, when negotiating SASL DIGEST-MD5 authentication, allows. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 44.2%. HIGH 7.5 44.2% 102
PoC No patch
CVE-2015-3145 The sanitize_cookie_path function in cURL and libcurl 7.31.0 through 7.41.0 does not properly calculate an index, which allows remote attackers to cause a denial of service (out-of-bounds write and. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. Epss exploitation probability 63.7% and no vendor patch available. HIGH 7.5 63.7% 101
No patch
CVE-2023-38545 This flaw makes curl overflow a heap based buffer in the SOCKS5 proxy handshake. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 26.2%. CRITICAL 9.8 26.2% 95
PoC
CVE-2019-5436 A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available and EPSS exploitation probability 13.3%. HIGH 7.8 13.3% 72
PoC
CVE-2018-0500 Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl 7.60.0 has a heap-based buffer overflow that might be exploitable by an attacker who can control the data that curl transmits. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available. CRITICAL 9.8 6.4% 69
PoC
CVE-2019-3822 libcurl versions from 7.36.0 to before 7.64.0 are vulnerable to a stack-based buffer overflow. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available. CRITICAL 9.8 12.8% 69
PoC
CVE-2022-32207 When curl < 7.84.0 saves cookies, alt-svc and hsts data to local files, it makes the operation atomic by finalizing the operation with a rename from a temporary name to the final target file name.In. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available. CRITICAL 9.8 6.8% 69
PoC No patch
CVE-2022-32221 When doing HTTP(S) transfers, libcurl might erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data to send, even when the `CURLOPT_POSTFIELDS` option has been set, if the same. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available. CRITICAL 9.8 4.3% 69
PoC No patch
CVE-2025-9086 1. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available. HIGH 7.5 0.0% 68
PoC
CVE-2021-22945 When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available. CRITICAL 9.1 6.2% 66
PoC
CVE-2023-23914 A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functionality fail when multiple URLs are requested serially. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available. CRITICAL 9.1 0.9% 66
PoC No patch
CVE-2023-27533 A vulnerability in input validation exists in curl <8.0 during communication using the TELNET protocol may allow an attacker to pass on maliciously crafted user name and "telnet options" during. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available. HIGH 8.8 2.0% 64
PoC No patch
CVE-2023-27534 A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde (~) character to be wrongly replaced when used as a prefix in the first path element, in addition to its. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available. HIGH 8.8 2.2% 64
PoC No patch
CVE-2026-3784 curl's HTTP proxy connection reuse mechanism fails to validate credential changes, allowing an attacker to intercept or manipulate traffic by leveraging an existing proxy connection established with different authentication. This affects users whose applications reuse proxy connections across requests with varying credentials, enabling credential confusion attacks. Public exploit code exists for this vulnerability, though a patch is available. MEDIUM 6.5 0.0% 63
PoC
CVE-2025-0665 A double-close vulnerability exists in libcurl when tearing down connection channels after threaded name resolution, causing the same eventfd file descriptor to be closed twice. This affects curl version 8.11.1 and various NetApp products that bundle libcurl, potentially leading to file descriptor confusion, limited information disclosure, and high availability impact. A public proof-of-concept exploit is available (HackerOne report 2954286), and the vulnerability has a notably high EPSS score of 6.37% (91st percentile), indicating elevated real-world exploitation likelihood. HIGH 7.0 6.4% 61
PoC

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