CVE-2025-53605

The protobuf crate before 3.7.2 for Rust allows uncontrolled recursion in the protobuf::coded_input_stream::CodedInputStream::skip_group parsing of unknown fields in untrusted input.

Published: 2025-07-05 Last update: 2026-04-15 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-53605 is rated Low Risk (37.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.18%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-53605

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-01 0.02% 0.18% +0.15%
2 2025-12-01 0.06% 0.02% -0.04%
3 2025-07-11 — 0.06% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-53605

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 3.6 [email protected]

Weakness enumeration for CVE-2025-53605

GitHub Security Advisory for CVE-2025-53605

GHSA-2gh3-rmm4-6rq5 · Severity: medium · Ecosystem: rust — Crash due to uncontrolled recursion in protobuf crate

OS Trackers for CVE-2025-53605

vendor priority summary link
debian not yet assigned CVE-2025-53605 not yet assigned priority: Debian including 1 source packages (rust-protobuf), 3 status rows across 3 suites (bookworm, forky, sid): resolved 2, open 1. https://security-tracker.debian.org/tracker/CVE-2025-53605
redhat medium — https://access.redhat.com/security/cve/CVE-2025-53605
ubuntu medium CVE-2025-53605 medium priority: Ubuntu including 1 source packages (rust-protobuf), 6 status rows across 6 suites (jammy, noble, oracular, plucky, questing, upstream): needs-triage 4, ignored 2. https://ubuntu.com/security/CVE-2025-53605

Affected software / configurations for CVE-2025-53605

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-53605

cvelogic Threat Intelligence