CVE-2026-24882

Exp

In GnuPG before 2.5.17, a stack-based buffer overflow exists in tpm2daemon during handling of the PKDECRYPT command for TPM-backed RSA and ECC keys.

Published: 2026-01-27 Last update: 2026-02-06 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-24882 is rated Exploit Available (50/100): CVSS High severity, with low exploitation likelihood (EPSS 0.01%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2026-24882

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2026-24882

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-28 — 0.01% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-24882

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.4 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.5 5.9 [email protected]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2026-24882

OS Trackers for CVE-2026-24882

vendor priority summary link
debian unimportant CVE-2026-24882 unimportant priority: Debian including 1 source packages (gnupg2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 3, resolved 2. https://security-tracker.debian.org/tracker/CVE-2026-24882
redhat high — https://access.redhat.com/security/cve/CVE-2026-24882
suse high CVE-2026-24882 severity important: SUSE including 261 source package names (13.2-9.67:gpg2-2.4.4-slfo.1.1_7.1, 16.3-1.17:gpg2-2.5.5-160000.4.1, …), 432 product×package rows across 142 product lines (Container suse/manager/5.0/x86_64/proxy-httpd, Container suse/manager/5.0/x86_64/proxy-salt-broker, … (142 product lines)): Known Affected 231, Fixed 151, Known Not Affected 46, First Fixed 4. https://www.suse.com/security/cve/CVE-2026-24882/
ubuntu medium CVE-2026-24882 medium priority: Ubuntu including 1 source packages (gnupg2), 7 status rows across 7 suites (bionic, focal, jammy, noble, questing, upstream, xenial): not-affected 6, released 1. https://ubuntu.com/security/CVE-2026-24882

Affected software / configurations for CVE-2026-24882

Vendor Product Version Raw CPE
gnupg gnupg >= 2.5.13, < 2.5.17 cpe:2.3:a:gnupg:gnupg:*:*:*:*:-:*:*:*
gpg4win gpg4win >= 5.0.0, < 5.0.1 cpe:2.3:a:gpg4win:gpg4win:*:*:*:*:*:*:*:*

References for CVE-2026-24882

URL Tags
https://dev.gnupg.org/T8045 Exploit Product
https://www.openwall.com/lists/oss-security/2026/01/27/8 Mailing List Third Party Advisory
cvelogic Threat Intelligence