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CVE-2025-15661VulnerabilityPublished Updated

SUSE · Security update for libssh2_org

Affects SUSESource GCVE Database

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Mentioned vulnerabilities

Not known to be exploited.

Data as of 4 Nov 2026, 00:17 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.

What to do

AI-suggested

A security update has been released that fixes all listed vulnerabilities in libssh2_org. Users and administrators should apply this update promptly to mitigate the risks. No additional mitigation steps are indicated beyond applying the official fix.

Description

Multiple security vulnerabilities have been identified and fixed in the libssh2_org library used by SUSE. These include out-of-bounds heap reads, integer overflows, denial of service conditions, heap buffer overflows, uninitialized pointer frees, and arbitrary code execution risks. The flaws affect various functions such as sftp_symlink(), userauth_password(), SSH_MSG_EXT_INFO handler, and SSH negotiation processes. The update addresses these issues to improve the security of the SSH client library.

References

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