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CVE-2024-45402

29
FAUCET Score

CVE-2024-45402 is a critical double-free vulnerability (CWE-415) affecting dena picotls, a TLS protocol library. When parsing a spoofed TLS handshake message, picotls may attempt to free the same memory twice, potentially leading to a use-after-free condition and arbitrary code execution. This vulnerability has a CVSS score of 9.8 (CRITICAL) due to its network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2024-08-12, < 2024-10-10CPE matchmatch criteria
cpe:2.3:a:dena:picotls:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
38.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 16th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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 / h2o/picotls/commit/9b88159ce763d680e4a13b6e8f3171ae923a535d
Patch
github.com / h2o/picotls/security/advisories/GHSA-w7c8-wjx9-vvvv
Vendor Advisory