synced 7 MIN AGO
01 Record

CVE-2025-15467

Stack buffer overflow in CMS (Auth)EnvelopedData parsing

HighPUBLISHEDCNA: openssl
CNA base score8.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
View raw JSON

02 Description

Stack buffer overflow in CMS (Auth)EnvelopedData parsing

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
74.79% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 99.5% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-10-15.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-01-27 16:01Z9 MO AGO
Last updated
2026-10-15 01:02Z14 DAYS AGO
Reserved
2026-01-06
Assigning CNA
openssl
Record state
PUBLISHED
Severity
High (CVSS 8.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-787Out-of-bounds WriteBase
  • CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base
Data version
5.2
Document digest
2f702c4572db60f596ec07e712e100c7089e297bcbd61146ff0c856df32c192e

05 Affected products

VendorProductVersionsPlatforms
OpenSSLOpenSSL3.6.0 to < 3.6.1, 3.5.0 to < 3.5.5, 3.4.0 to < 3.4.4, 3.3.0 to < 3.3.6, 3.0.0 to < 3.0.19—

06 References

07 Fixed in

AlmaLinux 9

  • openssl
    Fixed in 1:3.5.1-7.el9_7
  • openssl-devel
    Fixed in 1:3.5.1-7.el9_7
  • openssl-libs
    Fixed in 1:3.5.1-7.el9_7
  • openssl-perl
    Fixed in 1:3.5.1-7.el9_7

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 10

  • openssl
    Fixed in 1:3.5.1-7.el10_1.alma.1
  • openssl-devel
    Fixed in 1:3.5.1-7.el10_1.alma.1
  • openssl-libs
    Fixed in 1:3.5.1-7.el10_1.alma.1
  • openssl-perl
    Fixed in 1:3.5.1-7.el10_1.alma.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • openssl
    Fixed in 1:3.5.1-7.el9_7
  • openssl-devel
    Fixed in 1:3.5.1-7.el9_7
  • openssl-libs
    Fixed in 1:3.5.1-7.el9_7
  • openssl-perl
    Fixed in 1:3.5.1-7.el9_7

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 10

  • openssl
    Fixed in 1:3.5.1-7.el10_1.alma.1
  • openssl-devel
    Fixed in 1:3.5.1-7.el10_1.alma.1
  • openssl-libs
    Fixed in 1:3.5.1-7.el10_1.alma.1
  • openssl-perl
    Fixed in 1:3.5.1-7.el10_1.alma.1

Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • openssl
    Fixed in 3.0.18-1~deb12u2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • openssl
    Fixed in 3.5.4-1~deb13u2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • openssl
    Fixed in 3.5.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • openssl
    Fixed in 3.0.2-0ubuntu1.21

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • edk2
    No fix yet
  • openssl
    Fixed in 3.0.13-0ubuntu3.7

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 25.10

  • edk2
    No fix yet
  • openssl
    Fixed in 3.5.3-1ubuntu3

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • edk2
    No fix yet
  • edk2-hwe
    No fix yet
  • openssl
    Fixed in 3.5.5-1ubuntu1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.10

  • edk2
    No fix yet
  • edk2-hwe
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • nodejs
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • nodejs
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro FIPS-preview 22.04 LTS

  • openssl
    No fix yet
  • openssl-fips
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro FIPS-updates 22.04 LTS

  • openssl
    Fixed in 3.0.2-0ubuntu1.21+Fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • openssl-fips
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro FIPS-updates 24.04 LTS

  • openssl-fips
    Fixed in 3.0.13-0ubuntu3.12+Fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.