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CVE-2022-31111

20
FAUCET Score

CVE-2022-31111 affects Frontier, Substrate's Ethereum compatibility layer, due to an incorrect implementation of balance truncation when converting between EVM and Substrate balance types. This flaw can lead to discrepancies between displayed EVM transfer values and actual Substrate values. Rated as Medium severity (CVSS 5.3), it has a low attack complexity and requires no user interaction, but only impacts EVM internal states, not Substrate balances. There is currently no known active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:parity:frontier:-:*:*:*:*:*:*:*

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
1.31%
Probability of exploitation in next 30 days
EPSS Percentile
67.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0131 is in the 48th percentile among its peer group of 23,701 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

github.com / paritytech/frontier/commit/e3e427fa2e5d1200a784679f8015d4774cedc934
PatchThird Party Advisory
github.com / paritytech/frontier/commit/fed5e0a9577c10bea021721e8c2c5c378e16bf66
PatchThird Party Advisory
github.com / paritytech/frontier/pull/753
Issue TrackingPatchThird Party Advisory
github.com / paritytech/frontier/security/advisories/GHSA-hc8w-mx86-9fcj
PatchThird Party Advisory