The IAX2 channel driver (chan_iax2) in Asterisk before 20070504 does not properly null terminate data, which allows remote attackers to trigger loss of transmitted data, and possibly obtain sensitive information (memory contents) or cause a denial of service (application crash), by sending a frame that lacks a 0 byte.
CVE-2007-2488
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 10.0 — v2 rates that HIGH (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:N/C:C/I:C/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 4.3% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v2.0 (legacy)
- 10.0HIGHNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 10.0(low)
- EG Risk
- 51(Track)EG Risk 51/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity100% × 45%Exploitation4% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 4%
- EPSS %ILE
- 91%
- KEV
- Not listed
Published
May 7, 2007
Last Modified
April 23, 2026
References (18)
- cve@mitrehttp://ftp.digium.com/pub/asa/ASA-2007-013.pdf
- cve@mitrehttp://osvdb.org/35769
- cve@mitrehttp://secunia.com/advisories/25134
- cve@mitrehttp://secunia.com/advisories/25582
- cve@mitrehttp://www.debian.org/security/2007/dsa-1358
- cve@mitrehttp://www.novell.com/linux/security/advisories/2007_34_asterisk.html
- cve@mitrehttp://www.securityfocus.com/bid/23824
- cve@mitrehttp://www.vupen.com/english/advisories/2007/1661
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/34085
- af854a3a-2127-422b-91ae-364da2661108http://ftp.digium.com/pub/asa/ASA-2007-013.pdf
- af854a3a-2127-422b-91ae-364da2661108http://osvdb.org/35769
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/25134
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/25582
- af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2007/dsa-1358
- af854a3a-2127-422b-91ae-364da2661108http://www.novell.com/linux/security/advisories/2007_34_asterisk.html
Affected Packages
(4 across 4 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| asterisk | — | 1:1.4.5~dfsg-1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| asterisk | 0.1.11-3 ... 1:1.4.4~dfsg-3 (75 versions) | 1:1.4.5~dfsg-1 | — |
Debian:3.1(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| asterisk | 1:1.0.7.dfsg.1-2, 1:1.0.7.dfsg.1-2sarge1, 1:1.0.7.dfsg.1-2sarge2, 1:1.0.7.dfsg.1-2sarge3, 1:1.0.7.dfsg.1-2sarge4 | 1:1.0.7.dfsg.1-2sarge5 | — |
Debian:4.0(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| asterisk | 1:1.2.13~dfsg-2 | 1:1.2.13~dfsg-2etch1 | — |
Data Freshness Timeline
(refreshed 1× in last 7d / 11× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 116 total refreshes for this CVE.
- 2026-09-18 19:20 UTCEPSS rescore
- 2026-09-15 05:01 UTCOSV refresh
- 2026-09-15 03:04 UTCEPSS rescore
- 2026-09-13 16:40 UTCEPSS rescore
- 2026-09-12 14:54 UTCEPSS rescore
- 2026-09-10 09:24 UTCEPSS rescore
- 2026-09-05 15:22 UTCEPSS rescore
- 2026-09-04 13:54 UTCEPSS rescore
- 2026-09-04 04:59 UTCEPSS rescore
- 2026-08-30 01:14 UTCEPSS rescore
- 2026-08-27 04:34 UTCOSV refresh
- 2026-08-10 17:38 UTCOSV refresh
- 2026-08-08 16:30 UTCEPSS rescore
- 2026-08-07 16:20 UTCEPSS rescore
- 2026-08-06 13:41 UTCEPSS rescore
- 2026-08-05 19:11 UTCEPSS rescore
- 2026-08-04 15:03 UTCEPSS rescore
- 2026-08-04 10:28 UTCEPSS rescore
- 2026-08-03 10:28 UTCEPSS rescore
- 2026-07-28 15:30 UTCEPSS rescore
- 2026-07-26 13:32 UTCEG score recompute▲ 10.00
- 2026-07-25 18:00 UTCOSV refresh
- 2026-07-25 14:11 UTCEPSS rescore
- 2026-07-24 14:11 UTCEPSS rescore
- 2026-07-23 00:53 UTCEG score recompute
Show 75 moreShow fewer
- 2026-07-23 00:32 UTCEG score recompute
- 2026-07-22 23:57 UTCEG score recompute
- 2026-07-22 21:37 UTCEG score recompute
- 2026-07-22 14:03 UTCEPSS rescore
- 2026-07-21 15:19 UTCEPSS rescore
- 2026-07-20 17:02 UTCEPSS rescore
- 2026-07-16 16:58 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 01:55 UTCEPSS rescore
- 2026-07-13 22:25 UTCEPSS rescore
- 2026-07-13 06:07 UTCEPSS rescore
- 2026-07-13 06:07 UTCEPSS rescore
- 2026-07-08 15:09 UTCEPSS rescore
- 2026-07-08 12:35 UTCOSV refresh
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-05 02:26 UTCEPSS rescore
- 2026-07-04 06:27 UTCEPSS rescore
- 2026-07-04 06:26 UTCEPSS rescore
- 2026-07-02 14:00 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-30 23:18 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-28 14:02 UTCEPSS rescore
- 2026-06-28 04:52 UTCEPSS rescore
- 2026-06-25 13:46 UTCEPSS rescore
- 2026-06-25 13:46 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-24 14:01 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
- 2026-06-20 00:09 UTCOSV refresh
- 2026-06-19 19:22 UTCEPSS rescore
- 2026-06-19 19:22 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-14 23:13 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-08 14:13 UTCEPSS rescore
- 2026-06-07 15:21 UTCEPSS rescore
- 2026-06-07 15:21 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 02:53 UTCEG score recompute
- 2026-05-31 02:53 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 14:05 UTCOSV refresh
- 2026-05-27 13:37 UTCEPSS rescore
Related CVEs(same product)
Same product
10 shownDebian:3.1:asterisk · Debian:4.0:asterisk
Frequently asked(4)
What is CVE-2007-2488?
When was CVE-2007-2488 disclosed?
Is CVE-2007-2488 actively exploited?
How do I remediate CVE-2007-2488?
Dependency Blast Radius
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