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CVE-2023-24535

22
FAUCET Score

CVE-2023-24535 is a denial-of-service vulnerability affecting protobuf, specifically when parsing invalid text-format messages. An attacker can trigger a panic by providing a malformed message containing a minus sign followed by whitespace and no further input. This vulnerability has a CVSS score of 7.5 (HIGH), indicating it can be exploited remotely with low complexity, leading to high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.29.0CPE matchmatch criteria
cpe:2.3:a:protobuf:protobuf:1.29.0:*:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.09%
Probability of exploitation in next 30 days
EPSS Percentile
61.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0109 is in the 39th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

gopatch availablevia ghsa
Product: google.golang.org/protobufFixed in: 1.29.1

Vendor Advisories (2)

redhatCVE-2023-24535Moderate

golang/Protobuf: panic when parsing an incomplete number

Jun 14, 2023
goGHSA-hw7c-3rfg-p46jhigh

google.golang.org/protobuf vulnerable to panic leading to denial of service

Mar 14, 2023

References

github.com / golang/protobuf/issues/1530
Issue Tracking
go.dev / cl/475995
Patch
pkg.go.dev / vuln/GO-2023-1631
Third Party Advisory