Multiple vulnerabilities in SYMDNS.SYS for Symantec Norton Internet Security and Professional 2002 through 2004, Norton Personal Firewall 2002 through 2004, Norton AntiSpam 2004, Client Firewall 5.01 and 5.1.1, and Client Security 1.0 through 2.0 allow remote attackers to cause a denial of service or execute arbitrary code via (1) a manipulated length byte in the first-level decoding routine for NetBIOS Name Service (NBNS) that modifies an index variable and leads to a stack-based buffer overflow, (2) a heap-based corruption problem in an NBNS response that is missing certain RR fields, and (3) a stack-based buffer overflow in the DNS component via a Resource Record (RR) with a long canonical name (CNAME) field composed of many smaller components
Published May 20, 2004
10.0
HIGHCVSS 2.0
EPSS 12.80%
Description
Multiple vulnerabilities in SYMDNS.SYS for Symantec Norton Internet Security and Professional 2002 through 2004, Norton Personal Firewall 2002 through 2004, Norton AntiSpam 2004, Client Firewall 5.01 and 5.1.1, and Client Security 1.0 through 2.0 allow remote attackers to cause a denial of service or execute arbitrary code via (1) a manipulated length byte in the first-level decoding routine for NetBIOS Name Service (NBNS) that modifies an index variable and leads to a stack-based buffer overflow, (2) a heap-based corruption problem in an NBNS response that is missing certain RR fields, and (3) a stack-based buffer overflow in the DNS component via a Resource Record (RR) with a long canonical name (CNAME) field composed of many smaller components.
Affected products
No data.
- 5.01
- 5.1.1
- 1.0
- 1.1
- 1.2
- 1.3
- 1.4
- 1.5
- 1.6
- 1.7
- 1.8
- 1.9
- 2.0
- 2004
- 2002
- 2002
- 2003
- 2003
- 2004
- 2004
- 2002
- 2003
- 2004
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:N/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 2, 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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 12.80% (0.12798) | 96.17th | v5 (v2026.06.15) |
| Jun 15, 2026 | 12.80% (0.12798) | 95.76th | v5 (v2026.06.15) |
| Jan 23, 2026 | 62.85% (0.62850) | 98.32th | v4 (v2025.03.14) |
| Mar 17, 2025 | 58.00% (0.58001) | 97.96th | v4 (v2025.03.14) |
| Dec 17, 2024 | 89.63% (0.89628) | 99.02th | v3 (v2023.03.01) |
| Jun 4, 2024 | 92.64% (0.92643) | 99.00th | v3 (v2023.03.01) |
| Mar 7, 2023 | 92.44% (0.92439) | 98.39th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.23% (0.08228) | 93.49th | v2 (v2022.01.01) |
| Apr 1, 2022 | 8.23% (0.08228) | 92.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 8.23% (0.08228) | 82.23th | v2 (v2022.01.01) |
No CWE recorded.
References (21)
- http://lists.grok.org.uk/pipermail/full-disclosure/2004-May/021360.html mailing-listx_refsource_FULLDISC
- http://lists.grok.org.uk/pipermail/full-disclosure/2004-May/021361.html mailing-listx_refsource_FULLDISC
- http://lists.grok.org.uk/pipermail/full-disclosure/2004-May/021362.html mailing-listx_refsource_FULLDISC
- http://secunia.com/advisories/11066 third-party-advisoryx_refsource_SECUNIA
- http://securityresponse.symantec.com/avcenter/security/Content/2004.05.12.html x_refsource_CONFIRM
- http://securitytracker.com/id?1010144 vdb-entryx_refsource_SECTRACK
- http://securitytracker.com/id?1010145 vdb-entryx_refsource_SECTRACK
- http://securitytracker.com/id?1010146 vdb-entryx_refsource_SECTRACK
- http://www.ciac.org/ciac/bulletins/o-141.shtml third-party-advisorygovernment-resourcex_refsource_CIAC
- http://www.kb.cert.org/vuls/id/294998 third-party-advisoryx_refsource_CERT-VNPatchThird Party AdvisoryUS Government Resource
- http://www.kb.cert.org/vuls/id/634414 third-party-advisoryx_refsource_CERT-VNPatchThird Party AdvisoryUS Government Resource
- http://www.kb.cert.org/vuls/id/637318 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.osvdb.org/6099 vdb-entryx_refsource_OSVDB
- http://www.osvdb.org/6101 vdb-entryx_refsource_OSVDB
- http://www.osvdb.org/6102 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/10333 vdb-entryx_refsource_BID
- http://www.securityfocus.com/bid/10334 vdb-entryx_refsource_BID
- http://www.securityfocus.com/bid/10335 vdb-entryx_refsource_BID
- https://exchange.xforce.ibmcloud.com/vulnerabilities/16134 vdb-entryx_refsource_XF
- https://exchange.xforce.ibmcloud.com/vulnerabilities/16135 vdb-entryx_refsource_XF
- https://exchange.xforce.ibmcloud.com/vulnerabilities/16137 vdb-entryx_refsource_XF
Change history (0)
No recorded changes yet.