Kerberos in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 supports weak hashing algorithms, which allows local users to gain privileges by operating a service that sends crafted service tickets, as demonstrated by the CRC32 algorithm, aka "Kerberos Unkeyed Checksum Vulnerability."
Published Feb 10, 2011
7.2
HIGHCVSS 2.0
EPSS 1.57%
Description
Kerberos in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 supports weak hashing algorithms, which allows local users to gain privileges by operating a service that sends crafted service tickets, as demonstrated by the CRC32 algorithm, aka "Kerberos Unkeyed Checksum Vulnerability."
Affected products
No data.
- n/a
- n/a
- n/a
- n/a
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.57% (0.01573) | 74.51th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.57% (0.01573) | 72.11th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.69% (0.00687) | 70.05th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 14.59th | v3 (v2023.03.01) |
| May 27, 2024 | 0.04% (0.00044) | 12.29th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 10.28th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.28% (0.02283) | 81.39th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.28% (0.02283) | 79.63th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.28% (0.02283) | 58.19th | v2 (v2022.01.01) |
References (9)
- http://osvdb.org/70834 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/43251 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://support.avaya.com/css/P8/documents/100127250 x_refsource_CONFIRM
- http://www.securityfocus.com/bid/46130 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1025048 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2011/0326 vdb-entryx_refsource_VUPENVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-013 vendor-advisoryx_refsource_MS
- https://exchange.xforce.ibmcloud.com/vulnerabilities/64900 vdb-entryx_refsource_XF
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12432 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/70834 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/43251 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://support.avaya.com/css/P8/documents/100127250 | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/46130 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1025048 | vdb-entryx_refsource_SECTRACK | |
| http://www.vupen.com/english/advisories/2011/0326 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-013 | vendor-advisoryx_refsource_MS | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/64900 | vdb-entryx_refsource_XF | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12432 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.