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CVE-2022-48437

19
FAUCET Score

CVE-2022-48437 describes a vulnerability in LibreSSL before version 3.6.1 and OpenBSD before 7.2 errata 001, where the x509_verify_ctx_add_chain function fails to properly store errors during leaf certificate verification, leading to an incorrect error return. This issue, categorized as CWE-295 (Improper Certificate Validation), has a CVSSv3.1 score of 5.3 (MEDIUM), indicating a network-based attack with low complexity and a potential impact of low integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.6.1CPE matchmatch criteria
cpe:2.3:a:openbsd:libressl:*:*:*:*:*:*:*:*
< 7.2CPE matchmatch criteria
cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.36%
Probability of exploitation in next 30 days
EPSS Percentile
28.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0036 is in the 17th percentile among its peer group of 23,723 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

ftp.openbsd.org / pub/OpenBSD/LibreSSL/libressl-3.6.1-relnotes.txt
Patch
ftp.openbsd.org / pub/OpenBSD/patches/7.2/common/001_x509.patch.sig
Patch
github.com / openbsd/src/commit/4f94258c65a918ee3d8670e93916d15bf879e6ec
Patch