CVE-2011-1530

No known exploitation. EPSS puts it in the 83rd percentile. A vendor fix is available.

CVSS 2.06.8Medium EPSS percentile83rd2.4% chance in 30 days CISA KEVNot listedNo confirmed exploitation
No public exploit known FixVendor fixNo build named by the sources

Published 2011-12-08Updated 2026-04-29Sources: CVE.org, NVD, BDU

NVD CVE.org

What to do

The vendor has published a fix. Version details are below where the sources state them.

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

The process_tgs_req function in do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.2 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted TGS request that triggers an error other than the KRB5_KDB_NOENTRY error.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS83rd

CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

2.4% chance of exploitation activity in the next 30 days, which ranks it in the 83rd percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

5 events over 5313 days, from the signal feeds we watch.

2026-06-25OpenVAS check added
2026-04-29Patch availablerecord updated
2011-12-08Publishedweakness classified

Affected products

mitoss-project · USaka mit kerberos, mit krb5
- mit kerberosSecurity Products / pki-crypto
Gentoo Foundation Inc.oss-project · US
- Gentoo LinuxOSOn-premOperating Systems / linux-distro

And 1 more affected product. See all after sign-in

Technical detail

CVSS 2.0 vector

Open in the CVSS calculator

AV:N/AC:L/Au:S/C:N/I:N/A:C

Scored 6.8 by NVD.

How it is reached

Access Vector NetworkExploitable remotely over the network
Access Complexity LowNo special conditions required
Authentication SingleRequires single authentication

Impact if exploited

Confidentiality NoneNo confidentiality impact
Integrity NoneNo integrity impact
Availability CompleteTotal shutdown of the affected resource

Weaknesses

CWE-399No name in the record

Sources

References in the record

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