CVE-2007-1693 — The SIP channel module in Yet Another Telephony Engine (Yate) before 1.2.0 sets the caller_info_uri parameter using an incorrect variable that can be NULL, which allows remote attackers to cause a denial of service (NULL dereference and application crash) via a Call-Info header without a purpose parameter

Back Back to CVE browser

HIGH

The SIP channel module in Yet Another Telephony Engine (Yate) before 1.2.0 sets the caller_info_uri parameter using an incorrect variable that can be NULL, which allows remote attackers to cause a denial of service (NULL dereference and application crash) via a Call-Info header without a purpose parameter

Published May 17, 2007

7.8

HIGH

CVSS 2.0

EPSS 2.35%

Description

The SIP channel module in Yet Another Telephony Engine (Yate) before 1.2.0 sets the caller_info_uri parameter using an incorrect variable that can be NULL, which allows remote attackers to cause a denial of service (NULL dereference and application crash) via a Call-Info header without a purpose parameter.

Affected products

Remediation

No remediation recorded yet.

Metrics

2.35% 0.02350

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

EPSS probability 0.02350

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 (11 key points)

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

Date	Score	Percentile	Model
Oct 1, 2026	2.35% (0.02350)	83.07th	v5 (v2026.06.15)
Jun 15, 2026	2.35% (0.02350)	81.42th	v5 (v2026.06.15)
Mar 17, 2025	1.30% (0.01297)	78.32th	v4 (v2025.03.14)
Dec 12, 2024	0.19% (0.00192)	58.12th	v3 (v2023.03.01)
Feb 11, 2024	0.22% (0.00219)	58.96th	v3 (v2023.03.01)
Jan 18, 2024	0.21% (0.00213)	59.38th	v3 (v2023.03.01)
Mar 7, 2023	0.21% (0.00212)	57.36th	v3 (v2023.03.01)
Mar 6, 2023	1.21% (0.01213)	66.61th	v2 (v2022.01.01)
Feb 17, 2023	1.21% (0.01213)	66.22th	v2 (v2022.01.01)
Apr 1, 2022	1.21% (0.01213)	64.21th	v2 (v2022.01.01)
Feb 4, 2022	1.21% (0.01213)	40.54th	v2 (v2022.01.01)

Weaknesses (1)

CWE-20

Improper Input Validation

References (4)

http://securityreason.com/securityalert/2716
third-party-advisoryx_refsource_SREASONExploitThird Party Advisory
http://voip.null.ro/cgi-bin/cvsweb.cgi/yate/modules/ysipchan.cpp
x_refsource_CONFIRMIssue TrackingThird Party Advisory
http://www.securityfocus.com/archive/1/467289/100/200/threaded
mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/23746
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry

Link	Providers	Tags
http://securityreason.com/securityalert/2716		third-party-advisoryx_refsource_SREASONExploitThird Party Advisory
http://voip.null.ro/cgi-bin/cvsweb.cgi/yate/modules/ysipchan.cpp		x_refsource_CONFIRMIssue TrackingThird Party Advisory
http://www.securityfocus.com/archive/1/467289/100/200/threaded		mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/23746		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published May 17, 2007

Updated Aug 7, 2024

Reserved Mar 26, 2007

Link CVE-2007-1693

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2007-1693

Red Hat

Severity n/a

Public date n/a

Links CVE-2007-1693