CVE-2007-4455

mediumpriority · track · 21EPSS 0.018 · 78 %ileEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
1.77% (78th) EPSS
CVSS 5 · medium
Is it mine?
4 products
Check your exposure
Who says so?
2 sources
enisa_euvd · nvd

EPSS · scored 2026-10-28

The SIP channel driver (chan_sip) in Asterisk Open Source 1.4.x before 1.4.11, AsteriskNOW before beta7, Asterisk Appliance Developer Kit 0.x before 0.8.0, and s800i (Asterisk Appliance) 1.x before 1.0.3 allows remote attackers to cause a denial of service (memory exhaustion) via a SIP dialog that causes a large number of history entries to be created.

01

cvss

Technical severity, 0–10. One row per scoring source.

5.0
010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9
v2.04.3mediumAV:N/AC:L/Au:N/C:N/I:N/A:P/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USLLM-inferredCWE-770USLLM-inferred
03

affected products (4)

Products and version ranges known to be affected.

04

also known as (2)

Other names and identifiers for this entity.

05

sources

Which sources assert this record, and when.

enisa_euvdnvdNVDCVE.orgMITRE
published 2007-08-22modified 2026-06-16
06

references (16)

External citations — patches, advisories, analysis.

scry

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