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VulnerabilityPublished

CVE-2026-47738: open-quantum-safe liboqs · Access of Uninitialized Pointer

Affects open-quantum-safe liboqsSource CVE Database V5

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Not known to be exploited · CVSS 5.3 Medium : upgrade to 0.16.0 when convenient.

Data as of 6 Nov 2026, 21:35 UTC

CVSS 3.1 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitHub_M)CVSS 3.15.3
Patch
Available – fixed in 0.16.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Nov 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 6 Nov 2026.

What to do

Upgrade open-quantum-safe liboqs to 0.16.0.

Affected software

ProductAffectedFixed in
open-quantum-safeliboqsAffected
  • <0.16.0
Fixed in
  • 0.16.0

AI-suggested

Upgrade liboqs to version 0.16.0 or later, where this issue is fixed. No other mitigation is required.

Description

A vulnerability in liboqs prior to version 0.16.0 allows an uninitialized function pointer dereference in the OQS_KEM_encaps_derand function for certain NTRU KEM schemes. This can cause a calling-process crash and denial of service if the affected function is invoked on one of the six specified NTRU KEMs. The issue is fixed in version 0.16.0.

References

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