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VulnerabilityPublished Updated

CVE-2026-45784: Openssl · Buffer overflow with AES key wrap with padding in `cipher_update_inplace`

Affects opensslSource GCVE Database

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Not known to be exploited : upgrade to 0.10.80 soon.

Data as of 10 Nov 2026, 14:22 UTC

Severity
High

Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Patch
Available – fixed in 0.10.80

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 May 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 10 Nov 2026.

What to do

Upgrade openssl to 0.10.80.

Affected software

ProductAffectedFixed in
crates.ioopensslpkg:cargo/opensslOther threatsAffected
  • >=0.10.50 <0.10.80
Fixed in
  • 0.10.80

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

AI-suggested

Upgrade OpenSSL to version 0.10.80 or later, where the buffer sizing issue in `cipher_update_inplace` has been fixed. Users relying on AES key-wrap-with-padding ciphers should prioritize this update to prevent potential memory corruption.

Description

A buffer overflow vulnerability exists in OpenSSL's AES key-wrap-with-padding cipher implementation within the `cipher_update_inplace` method. This method incorrectly calculates buffer size, allowing writes up to 7 bytes beyond the allocated buffer when input length is not a multiple of 8. The flaw affects OpenSSL versions from 0.10.50 up to but not including 0.10.80. The issue was fixed in version 0.10.80 by correcting the size check.

References

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