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CVE-2002-0653

Off-by-one buffer overflow in the ssl_compat_directive function, as called by the rewrite_command...

7.8 HighPublic exploitFix available

CVE-2002-0653 is a high vulnerability (CVSS 7.8) in Modssl Mod Ssl, published July 2, 2002. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.14%, the 66th percentile. Fixed in libapache-mod-ssl 2.8.9-2.

Off-by-one buffer overflow in the ssl_compat_directive function, as called by the rewrite_command hook for mod_ssl Apache module 2.8.9 and earlier, allows local users to execute arbitrary code as the Apache server user via .htaccess files with long entries.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.14%Down 4.5 points since Feb 4, 2022

What each source reports

NVD Score used 7.8

Off-by-one buffer overflow in the ssl_compat_directive function, as called by the rewrite_command hook for mod_ssl Apache module 2.8.9 and earlier, allows local users to execute arbitrary code as the Apache server user via .htaccess files with long entries.

Record: CVE-2002-0653
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 4.6 MediumAV:L/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-193
Updated: 2026-11-02

CVE List No score

Off-by-one buffer overflow in the ssl_compat_directive function, as called by the rewrite_command hook for mod_ssl Apache module 2.8.9 and earlier, allows local users to execute arbitrary code as the Apache server user via .htaccess files with long entries.

Record: CVE-2002-0653
Updated: 2026-11-02

EUVDEUVD-2002-0647 No score

Off-by-one buffer overflow in the ssl_compat_directive function, as called by the rewrite_command hook for mod_ssl Apache module 2.8.9 and earlier, allows local users to execute arbitrary code as the Apache server user via .htaccess files with long entries.

Record: EUVD-2002-0647
Updated: 2026-11-03

GitHub AdvisoriesGHSA-chfp-36fq-v6g3 No score

Off-by-one buffer overflow in the ssl_compat_directive function, as called by the rewrite_command...

Off-by-one buffer overflow in the ssl_compat_directive function, as called by the rewrite_command hook for mod_ssl Apache module 2.8.9 and earlier, allows local users to execute arbitrary code as the Apache server user via .htaccess files with long entries.

Record: GHSA-chfp-36fq-v6g3
Updated: 2026-11-02

Affected products

modssl mod ssl

Affected packages

Affected packages
Package	Affected	Fixed
`libapache-mod-ssl` Debian:3.0	before 2.8.9-2, plus listed versions 2.4.10-1.3.9-1potato22.4.10-1.3.9-1potato42.8.7-1	2.8.9-2

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Apache mod_ssl 2.8.x - Off-by-One HTAccess Buffer Overflow	2002-06-22

History

History
When	Changed	Sources
2026-11-03	aliases	EUVD
2026-11-02	created	CVE List, Exploit-DB, GitHub Advisories, NVD, OSV

References

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