Vulnerability · Published Jul 5, 2025 · Assigned by mitre
CVE-2025-53605
Medium 5.9
In plain English
A medium-severity security flaw in protobuf from stepancheg. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.9Medium
Exploit odds (30 days)0.5%top 58.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | rust-protobuf | no fix listed | DEBIAN-CVE-2025-53605 |
| Debian:14 | rust-protobuf | 3.7.2-1 | DEBIAN-CVE-2025-53605 |
| Ubuntu:22.04:LTS | rust-protobuf | no fix listed | UBUNTU-CVE-2025-53605 |
| Ubuntu:24.04:LTS | rust-protobuf | no fix listed | UBUNTU-CVE-2025-53605 |
| Ubuntu:25.10 | rust-protobuf | no fix listed | UBUNTU-CVE-2025-53605 |
| Ubuntu:26.04:LTS | rust-protobuf | no fix listed | UBUNTU-CVE-2025-53605 |
| Ubuntu:26.10 | rust-protobuf | no fix listed | UBUNTU-CVE-2025-53605 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| stepancheg | protobuf | 0 – before 3.7.2 |
Weakness: CWE-674 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H