TI-2009-00629 Aliases CVE-2009-0653 GHSA-gj63-3383-h48m

OpenSSL, probably 0.9.6, does not verify the Basic Constraints for an intermediate…

LOW 35CWE-287Published 2009-02-20 · Updated 2024-09-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: Partial · Partial · Partial
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

OpenSSL, probably 0.9.6, does not verify the Basic Constraints for an intermediate CA-signed certificate, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack, a related issue to CVE-2002-0970.

Why it matters now

EPSS 0.01148 67th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:openssl:openssl:0.9.6:::::::*	0.9.6	Vulnerable	OpenSSL

cpe:2.3:a:openssl:openssl:0.9.6:*:*:*:*:*:*:* Versions 0.9.6 Vulnerable ·OpenSSL

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2009-0653
2026-10-03 Alias added: GHSA-gj63-3383-h48m

References

Exploit 1

https://www.blackhat.com/presentations/bh-dc-09/Marlinspike/BlackHat-DC-09-Marlinspike-Defeating-SSL.pdf

Other 1

http://www.blackhat.com/html/bh-dc-09/bh-dc-09-speakers.html#Marlinspike

TI-2022-01915 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
TI-2021-02645 SM2 Decryption Buffer Overflow CVSS 3.1CRITICAL 9.8
TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
TI-2022-01176 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
TI-2025-14107 Stack buffer overflow in CMS (Auth)EnvelopedData parsing CVSS 3.1HIGH 8.8

See all 312 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences