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CVE-2023-44273

26
FAUCET Score

CVE-2023-44273 is a critical signature malleability vulnerability affecting Consensys gnark-crypto versions through 0.11.2, stemming from improper deserialization of EdDSA and ECDSA signatures. With a CVSS score of 9.8 (CRITICAL), it presents a high-impact threat (C, I, A: H) that can be exploited remotely with low attack complexity and no user interaction. Despite its severity, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.12.0CPE matchmatch criteria
cpe:2.3:a:consensys:gnark-crypto:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.84%
Probability of exploitation in next 30 days
EPSS Percentile
54.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0084 is in the 38th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/consensys/gnark-cryptoFixed in: 0.12.0

Vendor Advisories (1)

goGHSA-fr8m-434r-g3xpmedium

gnark-crypto doesn't range check input values during ECDSA and EdDSA signature deserialization

Oct 15, 2025

References

github.com / Consensys/gnark-crypto/pull/449
Patch
github.com / Consensys/gnark-crypto/releases
Release Notes
verichains.io
Product