CVE-2012-4545: The http_negotiate_create_context function in protocol/http/http_negotiate.c in ELinks 0.12 before 0.12pre6, w

Routine

MEDIUM 5.1DOWNGRADE

CVE-2012-4545 is a medium-severity flaw (CVSS 5.1) affecting elinks. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The http_negotiate_create_context function in protocol/http/http_negotiate.c in ELinks 0.12 before 0.12pre6, when using HTTP Negotiate or GSS-Negotiate authentication, delegates user credentials through GSSAPI, which allows remote servers to authenticate as the client via the delegated credentials.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.1 (Medium)
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-287
Published	2013-01-03
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: elinks

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

Am I affected?

Timeline

2013-01-03 01:55 UTCPublished CVE record published
2026-06-16 23:45 UTCUpdated Record last modified

elinks elinks DOWNGRADE

Affected: 0.12 pre1 · 0.12 pre2 · 0.12 pre3 · 0.12 pre4 · 0.12 pre5

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.12

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.12 (Debian / Ubuntu)

apt-cache madison elinks sudo apt install elinks=<VERSION_BEFORE_0.12> sudo apt-mark hold elinks

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list elinks sudo dnf downgrade elinks-<VERSION_BEFORE_0.12> sudo dnf versionlock add elinks

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2012-4545?

elinks: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2012-4545 being exploited?

CVE-2012-4545 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-2012-4545 affect?

CVE-2012-4545 affects elinks. Severity is medium (CVSS 5.1). The http_negotiate_create_context function in protocol/http/http_negotiate.c in ELinks 0.12 before 0.12pre6, when using HTTP Negotiate or GSS-Negotiate authentication, delegates user credentials through GSSAPI, which allows remote servers t

How urgent is CVE-2012-4545?

Priority 38/100. No elevated risk signals yet.

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References

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