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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 10 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 the update promptly to mitigate these risks. Since the vendor advisory confirms fixes, no additional temporary mitigations are necessary.

Description

Multiple security vulnerabilities have been identified and fixed in the libssh2_org library, including out-of-bounds heap reads, integer overflows, heap buffer overflows, uninitialized pointer frees, double-free leading to arbitrary code execution, denial of service via integer underflow, and information disclosure. These issues affect various functions such as sftp_symlink(), userauth_password, and SSH negotiation components.

References

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