CVE-2011-0495

mediumpriority · track · 25EPSS 0.042 · 91 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

4.21% (91st) EPSS

CVSS 6 · medium

Is it mine?

15 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-27

Stack-based buffer overflow in the ast_uri_encode function in main/utils.c in Asterisk Open Source before 1.4.38.1, 1.4.39.1, 1.6.1.21, 1.6.2.15.1, 1.6.2.16.1, 1.8.1.2, 1.8.2.; and Business Edition before C.3.6.2; when running in pedantic mode allows remote authenticated users to execute arbitrary code via crafted caller ID data in vectors involving the (1) SIP channel driver, (2) URIENCODE dialplan function, or (3) AGI dialplan function.

cvss

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

6.0

010

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

v2.06mediumAV:N/AC:M/Au:S/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 6.8 · impact 6.4

v2.05.1mediumAV:N/AC:M/Au:S/C:P/I:P/A:P/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimary

affected products (15)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
debian debian linux= 6.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
digium asterisk< c.3.6.2nvdUScpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk1.2.0 → 1.2.40nvdUScpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk1.4.0 → 1.4.38.1nvdUScpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk1.4.39 → 1.4.39.1nvdUScpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk1.6.1 → 1.6.1.21nvdUScpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk1.6.2 → 1.6.2.15.1nvdUScpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk1.6.2.16 → 1.6.2.16.1nvdUScpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk1.8.0 → 1.8.1.2nvdUScpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisk1.8.2 → 1.8.2.2nvdUScpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
digium asterisknow= 1.5nvdUScpe:2.3:a:digium:asterisknow:*:*:*:*:*:*:*:*
digium s800i firmware= 1.2.0nvdUScpe:2.3:o:digium:s800i_firmware:*:*:*:*:*:*:*:*
fedoraproject fedora= 13nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
fedoraproject fedora= 14nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2011-01-20modified 2026-06-16

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+16120 more

references (30)

External citations — patches, advisories, analysis.

scry

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