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CVE-2015-2696· NVD / CVE Program· CNA mitre

lib/gssapi/krb5/iakerb.c in MIT Kerberos 5 (aka krb5) before 1.14 relies on an inappropriate context handle, which allows remote attackers t

Noroxi assessment

Priority: Monitor (action score 29/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 4.5% (FIRST EPSS); higher than 91.4% of all records.
  • Fixed version: krb5 (Debian:12) 1.13.2+dfsg-3; krb5 (Debian:7) 1.10.1+dfsg-5+deb7u4; krb5 (Debian:8) 1.12.1+dfsg-19+deb8u1.

Low priority for now. Upgrade to krb5 (Debian:12) 1.13.2+dfsg-3; krb5 (Debian:7) 1.10.1+dfsg-5+deb7u4; krb5 (Debian:8) 1.12.1+dfsg-19+deb8u1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

lib/gssapi/krb5/iakerb.c in MIT Kerberos 5 (aka krb5) before 1.14 relies on an inappropriate context handle, which allows remote attackers to cause a denial of service (incorrect pointer read and process crash) via a crafted IAKERB packet that is mishandled during a gss_inquire_context call.

HighCVSS 7.1 · v2.0—No exploit Fix available
Published
Nov 8, 2015
Updated
Jun 16, 2026
EPSS
4.5% · 91th percentile

Report tools

JSON

Action score

29

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 4.5%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2015-2696

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
mitkerberos 5
opensuseleap
opensuseopensuse
suselinux enterprise desktop
suselinux enterprise server
suselinux enterprise software development kit
debiandebian linux
canonicalubuntu linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • canonical ubuntu linux12.04
  • canonical ubuntu linux14.04
  • canonical ubuntu linux15.04
  • canonical ubuntu linux15.10
  • debian debian linux7.0
  • debian debian linux8.0
  • debian debian linux9.0
  • mit kerberos 5before 1.14
  • opensuse leap42.1
  • opensuse opensuse13.1
  • opensuse opensuse13.2
  • suse linux enterprise desktop12
  • suse linux enterprise server12
  • suse linux enterprise software development kit12

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12krb5before 1.13.2+dfsg-31.13.2+dfsg-3
Debian:7krb5before 1.10.1+dfsg-5+deb7u41.10.1+dfsg-5+deb7u4
Debian:8krb5before 1.12.1+dfsg-19+deb8u11.12.1+dfsg-19+deb8u1
SUSE:Linux Enterprise Desktop 12krb5before 1.12.1-19.11.12.1-19.1

Same product

mit: all records

Other highest-scoring records for the same primary product.

  • CVE-2007-0956The telnet daemon (telnetd) in MIT krb5 before 1.6.1 allows remote attackers to bypass authentication and gain system access via a username
    49Plan
  • CVE-2011-0285The process_chpw_request function in schpw.c in the password-changing functionality in kadmind in MIT Kerberos 5 (aka krb5) 1.7 through 1.9
    46Plan
  • CVE-2001-0247Buffer overflows in BSD-based FTP servers allows remote attackers to execute arbitrary commands via a long pattern string containing a {} se
    46Plan

Published before and after this one in the same product

  • ← EarlierCVE-2015-2694May 25, 2015 · The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has bee
    24Monitor
  • ← EarlierCVE-2015-2695Nov 8, 2015 · lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) before 1.14 relies on an inappropriate context handle, which allows remote atta
    22Monitor
  • Later →CVE-2015-2697Nov 8, 2015 · The build_principal_va function in lib/krb5/krb/bld_princ.c in MIT Kerberos 5 (aka krb5) before 1.14 allows remote authenticated users to ca
    17Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:krb51.13.2+dfsg-3 · Debian:12Package registry (OSV)
suse:krb51.12.1-19.1 · SUSE:Linux Enterprise Desktop 12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

    If successful

    Confidentiality
    none
    Integrity
    none
    Availability
    C · the service can be disrupted
    Attack complexity
    M
    Confidentiality impact
    None
    Integrity impact
    None
    Availability impact
    C

    Weakness class (CWE)

    CWE-18 · DEPRECATED: Source Code

    CVSS vector

    AV:N/AC:M/Au:N/C:N/I:N/A:C

    nvd-primary

    Attack context

    MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

    MITRE has no CAPEC/ATT&CK mapping for this CWE.

    Change log

    1. Fix✗ → ✓

    For records you follow, these changes also arrive as notifications. →

    References

    Show all references (9 more)

    Vendor advisories and official records. Exploit/PoC links are deliberately left out.

    All records