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CVE-2024-28871

21
FAUCET Score

CVE-2024-28871 is a high-severity vulnerability affecting LibHTP versions up to 0.5.46, including its use in OISF products, where malformed HTTP request traffic can lead to excessive CPU usage. This unauthenticated network-based attack has low complexity and can result in a denial of service. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
0.5.46CPE matchmatch criteria
cpe:2.3:a:oisf:libhtp:0.5.46:*:*:*:*:*:*:*

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
0.84%
Probability of exploitation in next 30 days
EPSS Percentile
54.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0084 is in the 29th percentile among its peer group of 51,466 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)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / OISF/libhtp/commit/79e713f3e527593a45f545e854cd9e6fbb3cd3ed
Patch
github.com / OISF/libhtp/commit/bf618ec7f243cebfb0f7e84c3cb158955cb32b4d
Patch
github.com / OISF/libhtp/security/advisories/GHSA-ffr2-45w9-7wmg
Vendor Advisory
redmine.openinfosecfoundation.org / issues/6757
Issue Tracking