CVE-2026-7598
A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauth_password of the file src/u
CVSS
7.3
High
EPSS
0.5%
p37
KEV
—
Exploit Today
11
0-100
Published: May 1, 2026 · Last modified: Jul 15, 2026 · CWE-189 · CWE-190
0.5%EPSS · 30 days0.5%
2026-06-302026-07-16
A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauth_password of the file src/userauth.c. Such manipulation of the argument username_len/password_len leads to integer overflow. The attack may be launched remotely. The name of the patch is 256d04b60d80bf1190e96b0ad1e91b2174d744b1. A patch should be applied to remediate this issue.
- github.comhttps://github.com/libssh2/libssh2/
- github.comhttps://github.com/libssh2/libssh2/commit/256d04b60d80bf1190e96b0ad1e91b2174d744b1
- github.comhttps://github.com/libssh2/libssh2/pull/1858
- vuldb.comhttps://vuldb.com/submit/805564
- vuldb.comhttps://vuldb.com/vuln/360555
- vuldb.comhttps://vuldb.com/vuln/360555/cti
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:16736
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:7021
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-7598
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2464597
- security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7598.json
- vuldb.comhttps://vuldb.com/submit/805564
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2020-292387.5 HIG96.6%
——29An integer buffer overflow in the Nginx webserver of ExpressVPN Router version 1 allows remote attackers to obtain sensitive information when the server running as reverse proxy via specially crafted request.8dCVE-2011-40439.3 NO 93.8%
——28Integer overflow in an unspecified ActiveX control in SVUIGrd.ocx in ARC Informatique PcVue 6.0 through 10.0, FrontVue, and PlantVue allows remote attackers to execute arbitrary code via a large value for an integer parameter, leading to a buffer overflow.7dCVE-2022-250627.5 HIG87.6%
——26TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain an integer overflow via the function dm_checkString. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request.8dCVE-2023-458539.8 CRI86.6%
——26MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. NOTE: MiniZip is not a supported part of the zlib product. NOTE: pyminizip through 0.2.6 is also vulnerable because it bundles an affected zlib version, and exposes the applicable MiniZip code through its compress API.2dCVE-2026-489337.5 HIG84.9%
——25A flaw in Node.js WebCrypto implementation can crash the process if the input of `subtle.encrypt()` is a multiple of 2GiB.
This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.13hCVE-2024-220519.8 CRI70.4%
——21CommonMarker versions prior to 0.23.4 are at risk of an integer overflow vulnerability. This vulnerability can result in possibly unauthenticated remote attackers to cause heap memory corruption, potentially leading to an information leak or remote code execution, via parsing tables with marker rows that contain more than UINT16_MAX columns.2d