CVE-2007-3959 — The IM Server (aka IMserve or IMserver) 2.0.5.30 and probably earlier in Ipswitch Instant Messaging before 2.07 in Ipswitch Collaboration Suite (ICS) allows remote attackers to cause a denial of service (daemon crash) via certain data to TCP port 5179 that overwrites a destructor, as reachable by the (1) DoAttachVideoSender, (2) DoAttachVideoReceiver, (3) DoAttachAudioSender, and (4) DoAttachAudioReceiver functions

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MEDIUM

The IM Server (aka IMserve or IMserver) 2.0.5.30 and probably earlier in Ipswitch Instant Messaging before 2.07 in Ipswitch Collaboration Suite (ICS) allows remote attackers to cause a denial of service (daemon crash) via certain data to TCP port 5179 that overwrites a destructor, as reachable by the (1) DoAttachVideoSender, (2) DoAttachVideoReceiver, (3) DoAttachAudioSender, and (4) DoAttachAudioReceiver functions

Published Jul 24, 2007

5.0

MEDIUM

CVSS 2.0

EPSS 6.46%

Description

The IM Server (aka IMserve or IMserver) 2.0.5.30 and probably earlier in Ipswitch Instant Messaging before 2.07 in Ipswitch Collaboration Suite (ICS) allows remote attackers to cause a denial of service (daemon crash) via certain data to TCP port 5179 that overwrites a destructor, as reachable by the (1) DoAttachVideoSender, (2) DoAttachVideoReceiver, (3) DoAttachAudioSender, and (4) DoAttachAudioReceiver functions.

Affected products

Remediation

No remediation recorded yet.

Metrics

6.46% 0.06460

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.06460

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 (16 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	6.46% (0.06460)	93.53th	v5 (v2026.06.15)
Jun 15, 2026	6.46% (0.06460)	92.84th	v5 (v2026.06.15)
Mar 17, 2025	0.93% (0.00933)	74.54th	v4 (v2025.03.14)
Dec 17, 2024	10.99% (0.10992)	95.10th	v3 (v2023.03.01)
Jul 4, 2024	3.46% (0.03462)	91.57th	v3 (v2023.03.01)
May 27, 2024	4.14% (0.04140)	92.17th	v3 (v2023.03.01)
Apr 19, 2024	4.25% (0.04253)	92.17th	v3 (v2023.03.01)
Mar 12, 2024	5.58% (0.05584)	93.06th	v3 (v2023.03.01)
Feb 3, 2024	4.66% (0.04657)	91.81th	v3 (v2023.03.01)
Dec 26, 2023	4.84% (0.04844)	91.95th	v3 (v2023.03.01)
Jul 30, 2023	5.39% (0.05393)	92.09th	v3 (v2023.03.01)
Mar 7, 2023	5.01% (0.05008)	91.60th	v3 (v2023.03.01)
Mar 6, 2023	1.32% (0.01319)	71.27th	v2 (v2022.01.01)
Feb 23, 2023	1.32% (0.01319)	71.23th	v2 (v2022.01.01)
Apr 1, 2022	1.32% (0.01319)	69.22th	v2 (v2022.01.01)
Feb 4, 2022	1.32% (0.01319)	44.98th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (6)

http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=566
third-party-advisoryx_refsource_IDEFENSEPatch
http://secunia.com/advisories/26154
third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
http://www.ipswitch.com/support/instant_messaging/patch-upgrades.asp
x_refsource_CONFIRMPatch
http://www.securityfocus.com/bid/25031
vdb-entryx_refsource_BIDPatch
http://www.securitytracker.com/id?1018440
vdb-entryx_refsource_SECTRACK
http://www.vupen.com/english/advisories/2007/2621
vdb-entryx_refsource_VUPEN

Link	Providers	Tags
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=566		third-party-advisoryx_refsource_IDEFENSEPatch
http://secunia.com/advisories/26154		third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
http://www.ipswitch.com/support/instant_messaging/patch-upgrades.asp		x_refsource_CONFIRMPatch
http://www.securityfocus.com/bid/25031		vdb-entryx_refsource_BIDPatch
http://www.securitytracker.com/id?1018440		vdb-entryx_refsource_SECTRACK
http://www.vupen.com/english/advisories/2007/2621		vdb-entryx_refsource_VUPEN

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Jul 24, 2007

Updated Aug 7, 2024

Reserved Jul 24, 2007

Link CVE-2007-3959

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2007-3959

Red Hat

Severity n/a

Public date n/a

Links CVE-2007-3959