CVE-2008-5396

Array index error in the (1) torisa.c and (2) dahdi/tor2.c drivers in Zaptel (aka DAHDI) 1.4.11 and earlier allows local users in the dialout group to overwrite an integer value in kernel memory by writing to /dev/zap/ctl, related to missing validation of the sync field associated with the ZT_SPANCONFIG ioctl.

Published: 2008-12-09 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2008-5396 is rated Low Risk (38.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.35%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2008-5396

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.03% 0.35% +0.32%
2 2025-03-17 0.06% 0.03% -0.02%
3 2023-03-07 — 0.06% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2008-5396

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2008-5396

OS Trackers for CVE-2008-5396

vendor priority summary link
redhat low — https://access.redhat.com/security/cve/CVE-2008-5396
ubuntu low CVE-2008-5396 low priority: Ubuntu including 11 source packages (linux, linux-ec2, …), 102 status rows across 11 suites (dapper, gutsy, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, upstream): DNE 61, not-affected 24, needs-triage 10, ignored 6, released 1. https://ubuntu.com/security/CVE-2008-5396

Affected software / configurations for CVE-2008-5396

Vendor Product Version Raw CPE
asterisk zaptel <= 1.4.11 cpe:2.3:a:asterisk:zaptel:*:*:*:*:*:*:*:*
asterisk zaptel 1.2 cpe:2.3:a:asterisk:zaptel:1.2:*:*:*:*:*:*:*
asterisk zaptel 1.2.27 cpe:2.3:a:asterisk:zaptel:1.2.27:*:*:*:*:*:*:*
asterisk zaptel 1.4 cpe:2.3:a:asterisk:zaptel:1.4:*:*:*:*:*:*:*

References for CVE-2008-5396

cvelogic Threat Intelligence