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CVE-2022-31172

23
FAUCET Score

CVE-2022-31172 affects OpenZeppelin Contracts versions 4.1.0 through 4.7.1, where an incorrect assumption in Solidity 0.8's abi.decode can cause SignatureChecker.isValidSignatureNow to revert unexpectedly, particularly in contracts not implementing EIP-1271 as anticipated. This vulnerability carries a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity that could lead to high integrity impact, potentially allowing attackers to bypass signature validation. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.1.0, < 4.7.1CPE matchmatch criteria
cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
37.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 16th percentile among its peer group of 51,506 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

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: @openzeppelin/contractsFixed in: 4.7.1
npmpatch availablevia ghsa
Product: @openzeppelin/contracts-upgradeableFixed in: 4.7.1

Vendor Advisories (1)

npmGHSA-4g63-c64m-25w9high

OpenZeppelin Contracts's SignatureChecker may revert on invalid EIP-1271 signers

Jul 21, 2022

References

github.com / OpenZeppelin/openzeppelin-contracts/pull/3552
PatchThird Party Advisory
github.com / OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4g63-c64m-25w9
Third Party Advisory