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CVE-2019-14855

25
FAUCET Score

CVE-2019-14855 describes a critical flaw in GnuPG versions prior to 2.2.18, allowing attackers to forge certificate signatures by exploiting SHA-1 collision vulnerabilities. This vulnerability impacts various distributions including Canonical, Fedora, and Ubuntu Linux. Rated 7.5 HIGH, it presents a low-complexity network attack vector that could lead to high confidentiality impacts, though integrity and availability are unaffected. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.2.18CPE matchmatch criteria
cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:*
30CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
31CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.05%
Probability of exploitation in next 30 days
EPSS Percentile
60.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0105 is in the 38th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2019-14855Low

gnupg2: OpenPGP Key Certification Forgeries with SHA-1

Jan 9, 2020

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
dev.gnupg.org / T4755
Vendor Advisory
lists.gnupg.org / pipermail/gnupg-announce/2019q4/000442.html
Mailing ListRelease NotesVendor Advisory
rwc.iacr.org / 2020/slides/Leurent.pdf
ExploitThird Party Advisory
usn.ubuntu.com / 4516-1
Third Party Advisory