CVE-2011-4082: A local file inclusion flaw was found in the way the phpLDAPadmin before 0.9.8 processed certain values of the

Q: How do I fix CVE-2011-4082?

phpldapadmin: upgrade to 0.9.8; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2011-4082 being exploited?

CVE-2011-4082 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2011-4082 affect?

CVE-2011-4082 affects phpldapadmin, debian linux. Severity is high (CVSS 7.5). A local file inclusion flaw was found in the way the phpLDAPadmin before 0.9.8 processed certain values of the "Accept-Language" HTTP header. A remote attacker could use this flaw to cause a denial of service via specially-crafted request.

Q: How urgent is CVE-2011-4082?

Priority 56/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

This month

HIGH 7.5REMOTEWATCHLISTUPGRADEMITIGATE

CVE-2011-4082 is a high-severity flaw (CVSS 7.5) affecting phpldapadmin, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A local file inclusion flaw was found in the way the phpLDAPadmin before 0.9.8 processed certain values of the "Accept-Language" HTTP header. A remote attacker could use this flaw to cause a denial of service via specially-crafted request.

Why this priority

High severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-400
Published	2019-11-26
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: debian · phpldapadmin project

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-11-26 05:15 UTCPublished CVE record published
2026-06-16 23:34 UTCUpdated Record last modified

phpldapadmin project phpldapadmin UPGRADE

Affected: < 0.9.8

Fixed in: 0.9.8

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy phpldapadmin || rpm -q phpldapadmin || phpldapadmin --version

2. UPGRADE to 0.9.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade phpldapadmin

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade phpldapadmin

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

debian debian linux MITIGATE

Affected: 8.0 · 9.0 · 10.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2011-4082?

phpldapadmin: upgrade to 0.9.8; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2011-4082 being exploited?

CVE-2011-4082 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2011-4082 affect?

CVE-2011-4082 affects phpldapadmin, debian linux. Severity is high (CVSS 7.5). A local file inclusion flaw was found in the way the phpLDAPadmin before 0.9.8 processed certain values of the "Accept-Language" HTTP header. A remote attacker could use this flaw to cause a denial of service via specially-crafted request.

How urgent is CVE-2011-4082?

Priority 56/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Debian vulnerabilities

Related CVEs

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CVE-2018-12689 CRITICAL 9.8 DOWNGRADE phpLDAPadmin 1.2.2 allows LDAP injection via a crafted server_id parameter in a cmd.php?cmd=login_form request
CVE-2017-11107 MEDIUM 6.1 UPGRADE MITIGATE phpLDAPadmin through 1.2.3 has XSS in htdocs/entry_chooser.php via the form, element, rdn, or container parame

References

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