Is CVE-2011-2767 being actively exploited?

CVE-2011-2767 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-2767?

CVE-2011-2767 has a CVSS 3.0 base score of 9.8 (CRITICAL).

CVE-2011-2767

CRITICAL · CVSS 9.8EPSS 8.9%EU EUVD

mod_perl 2.0 through 2.0.10 allows attackers to execute arbitrary Perl code by placing it in a user-owned .htaccess file, because (contrary to the documentation) there is no configuration option that permits Perl code for the administrator's control of HTTP request processing without also permitting unprivileged users to run Perl code in the context of the user account that runs Apache HTTP Server processes.

Key facts

CVSS score: 9.8 (v3.0)
Severity: CRITICAL
CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-94
EPSS score: 8.9% (95th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-2741)
Published: August 26, 2018
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-2741 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

apache / mod perl
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
debian / debian linux
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux desktop
redhat / enterprise linux server
redhat / enterprise linux workstation

Certified products that may be affected

8 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux 7 NSS Cryptographic Module - Red Hat®, Inc. - FIPS 140 4498 - historical
Red Hat Enterprise Linux 7 Kernel Crypto API Cryptographic Module - Red Hat®, Inc. - FIPS 140 3939 - historical
Red Hat Enterprise Linux 7 OpenSSH Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 3891 - historical
Red Hat Enterprise Linux 7 OpenSSH Client Cryptographic Module - Red Hat®, Inc. - FIPS 140 3892 - historical
Red Hat Enterprise Linux 7 OpenSSL Cryptographic Module - Red Hat®, Inc. - FIPS 140 3867 - historical

See all 8 in the Security Certifications Explorer.

References

http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00063.html
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00065.html
http://www.securityfocus.com/bid/105195(Third Party Advisory, VDB Entry)
https://access.redhat.com/errata/RHSA-2018:2737(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2018:2825(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2018:2826(Third Party Advisory)
https://bugs.debian.org/644169(Issue Tracking, Mailing List, Third Party Advisory)
https://lists.apache.org/thread.html/c8ebe8aad147a3ad2e7b0e8b2da45263171ab5d0fc7f8c100feaa94d%40%3Cmodperl-cvs.perl.apache.org%3E
https://lists.debian.org/debian-lts-announce/2018/09/msg00018.html(Mailing List, Third Party Advisory)
https://mail-archives.apache.org/mod_mbox/perl-modperl/201110.mbox/raw/%3C20111004084343.GA21290%40ktnx.net%3E(Mailing List, Third Party Advisory)
https://usn.ubuntu.com/3825-1/(Third Party Advisory)
https://usn.ubuntu.com/3825-2/(Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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