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CVE-2025-15382VulnerabilityPublished

CVE-2025-15382: wolfSSL wolfSSH · Out-of-bounds Read

Affects wolfSSL wolfSSHSource CVE Database V5

0

Not known to be exploited · CVSS 5.1 Medium : upgrade to 1.4.21 when convenient.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score
5.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 28% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.4.21
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 2026-10-25.

What to do

Upgrade wolfSSL wolfSSH to 1.4.21.

Affected software

ProductAffectedFixed in
wolfSSLwolfSSHAffected
  • >=1.4.12 <1.4.21
Fixed in
  • 1.4.21
GitHubwolfssl/wolfsshpkg:github/wolfssl/wolfsshOther threatsAffected
  • =1.4.12
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

2) Employ network segmentation and strict firewall rules to limit access to devices running wolfSSH. 3) Monitor SCP traffic for unusual path patterns containing '/./' sequences that could indicate exploitation attempts. 4) Implement application-level input validation or wrappers that sanitize SCP paths before passing them to wolfSSH. 6) Conduct thorough code audits and fuzz testing on wolfSSH integrations to detect similar path parsing issues. 7) Maintain robust logging and alerting to detect anomalous SCP usage patterns. These steps go beyond generic advice by focusing on access control, input validation, and proactive monitoring tailored to this vulnerability's characteristics.

Description

A heap buffer over-read vulnerability exists in the wolfSSH_CleanPath() function in wolfSSH. An authenticated remote attacker can trigger the issue via crafted SCP path input containing '/./' sequences, resulting in a heap over read by 1 byte.

References

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