HOMEVULNERABILITIESCVE-2022-24787
HIGH

CVE-2022-24787

CWE-697Published: April 4, 2022· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. In version 0.3.1 and prior, bytestrings can have dirty bytes in them, resulting in the word-for-word comparisons giving incorrect results. Even without dirty nonzero bytes, two bytestrings can compare to equal if one ends with `"\x00"` because there is no comparison of the length. A patch is available and expected to be part of the 0.3.2 release. There are currently no known workarounds.

NVD Source

Technical Analysis

CVE-2022-24787 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Vendors & Products

vyperlang1 product(s)
vyper
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/vyperlang/vyper/commit/2c73f8352635c0a433423a5b94740de1a118e508
PATCHhttps://github.com/vyperlang/vyper/security/advisories/GHSA-7vrm-3jc8-5wwm
PATCHhttps://github.com/vyperlang/vyper/commit/2c73f8352635c0a433423a5b94740de1a118e508
PATCHhttps://github.com/vyperlang/vyper/security/advisories/GHSA-7vrm-3jc8-5wwm

All References (4)

→
https://github.com/vyperlang/vyper/commit/2c73f8352635c0a433423a5b94740de1a118e508Patch · Third Party Advisory
→
https://github.com/vyperlang/vyper/security/advisories/GHSA-7vrm-3jc8-5wwmPatch · Third Party Advisory
→
https://github.com/vyperlang/vyper/commit/2c73f8352635c0a433423a5b94740de1a118e508Patch · Third Party Advisory
→
https://github.com/vyperlang/vyper/security/advisories/GHSA-7vrm-3jc8-5wwmPatch · Third Party Advisory

Quick Facts

CVE IDCVE-2022-24787
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-697
CISA KEVNo
Affected1 vendor(s)
PublishedApr 4, 2022

Related CVEs (CWE-697)

CVE-2021-44971
9.8
CVE-2021-3833
9.8
CVE-2020-23359
9.8
CVE-2021-35973
9.8
CVE-2020-23360
9.8
CVE-2014-125057
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-24787 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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