Which products and versions are affected by CVE-2004-1305?

Affected: Ip Softphone 2050 (Nortel); Media Communication Server 5100 (Nortel) versions 3.0; Media Communication Server 5200 (Nortel) versions 3.0, among others. The full list is in the CVE brief.

Is CVE-2004-1305 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2004-1305 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2004-1305?

Public exploit code is available.

Is there a fix for CVE-2004-1305?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2004-1305 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2004-1305

MediumPublic exploit

The Windows Animated Cursor (ANI) capability in Windows NT, Windows 2000 through SP4, Windows XP through SP1, and Windows 2003 allow remote attackers to cause a denial of service via (1) the frame number set to zero, which causes an invalid memory address to be used and leads to…

Published Dec 23, 2004 · Updated Apr 15, 2026

Key Facts

Patch immediately

CVE-2004-1305 is a medium-severity vulnerability (CVSS 5.0 v2) affecting Ip Softphone 2050 (Nortel), Media Communication Server 5100 (Nortel), Media Communication Server 5200 (Nortel) and 16 more products.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 59% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

5.0

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

EPSS (30-day exploit likelihood)

59%

Higher than 99.0% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2004-1305 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Affected Products

67 affected entries in total

Product	Affected versions	Fixed in
Ip Softphone 2050Nortel	See advisory	n/a
Media Communication Server 5100Nortel	3.0	n/a
Media Communication Server 5200Nortel	3.0	n/a
Media Processing ServerNortel	See advisory	n/a
PeriphonicsNortel	See advisory	n/a

14 more affected products in the full CVE brief

Timeline

Publicly disclosed
Dec 23, 2004
Last updated
Apr 15, 2026

References

advisoryhttp://www.xfocus.net/flashsky/icoExp/
patchVU#177584
patchVU#697136
patchTA05-012A
exploitExploitDB-721

8 more references in the full CVE brief

FAQ

Common Questions.

The Windows Animated Cursor (ANI) capability in Windows NT, Windows 2000 through SP4, Windows XP through SP1, and Windows 2003 allow remote attackers to cause a denial of service via (1) the frame number set to zero, which causes an invalid memory address to be used and leads to a kernel crash, or (2) the rate number…
Affected: Ip Softphone 2050 (Nortel); Media Communication Server 5100 (Nortel) versions 3.0; Media Communication Server 5200 (Nortel) versions 3.0, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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