HOMEVULNERABILITIESCVE-2026-41681
CRITICAL

CVE-2026-41681

CWE-121Published: April 24, 2026· Updated: Apr 28, 2026

9.8
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:12.8th

Official Description

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.39 to before 0.10.78, EVP_DigestFinal() always writes EVP_MD_CTX_size(ctx) to the out buffer. If out is smaller than that, MdCtxRef::digest_final() writes past its end, usually corrupting the stack. This is reachable from safe Rust. This vulnerability is fixed in 0.10.78.

NVD Source

Technical Analysis

CVE-2026-41681 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 complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

rust-openssl_project1 product
rust-openssl
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
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Official Patches & Advisories

PATCHhttps://github.com/rust-openssl/rust-openssl/commit/826c3888b77add418b394770e2b2e3a72d9f92fe
ADVISORYhttps://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-ghm9-cr32-g9qj

All References (4)

→
https://github.com/rust-openssl/rust-openssl/commit/826c3888b77add418b394770e2b2e3a72d9f92fePatch
→
https://github.com/rust-openssl/rust-openssl/pull/2608Issue Tracking
→
https://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.78Release Notes
→
https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-ghm9-cr32-g9qjVendor Advisory

Quick Facts

CVE IDCVE-2026-41681
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-121
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedApr 24, 2026

Related CVEs (CWE-121)

CVE-2026-12846
10.0
CVE-2017-20230
10.0
CVE-2026-12848
10.0
CVE-2026-37541
10.0
CVE-2026-12847
10.0
CVE-2026-12485
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-41681 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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