THREATPORT/VULNERABILITY/CVE-2010-2547
HIGH SEVERITY

CVE-2010-2547

Gnupg vulnerability

CVSS
8.1
EPSS
5.3%
EPSS pct
92th
Exploited
No known
Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.
Affected vendor
Gnupg
Affected product
Gnupg
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2010-08-05

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 5.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2010-2547

  • Confirm whether Gnupg Gnupg is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2010-2547.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2010-2547

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2010-2547 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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