Cisco IP Phone 7940 and 7960 with P0S3-08-6-00 firmware, and other SIP firmware before 8.7(0), allows remote attackers to cause a denial of service (device reboot) via (1) a certain sequence of 10 invalid SIP INVITE and OPTIONS messages; or (2) a certain invalid SIP INVITE message that contains a remote tag, followed by a certain set of two related SIP OPTIONS messages
Published Aug 21, 2007
7.1
HIGHCVSS 2.0
EPSS 13.99%
Description
Cisco IP Phone 7940 and 7960 with P0S3-08-6-00 firmware, and other SIP firmware before 8.7(0), allows remote attackers to cause a denial of service (device reboot) via (1) a certain sequence of 10 invalid SIP INVITE and OPTIONS messages; or (2) a certain invalid SIP INVITE message that contains a remote tag, followed by a certain set of two related SIP OPTIONS messages.
Affected products
No data.
- ≤ 8.70
- 3.0
- 3.1
- 3.2
- 8.6
- ≤ 8.70
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 13.99% (0.13989) | 96.44th | v5 (v2026.06.15) |
| Jun 15, 2026 | 13.99% (0.13989) | 96.07th | v5 (v2026.06.15) |
| Jun 1, 2026 | 74.34% (0.74345) | 98.86th | v4 (v2025.03.14) |
| Jan 12, 2026 | 71.58% (0.71577) | 98.67th | v4 (v2025.03.14) |
| Nov 20, 2025 | 75.64% (0.75637) | 98.98th | v4 (v2025.03.14) |
| Sep 23, 2025 | 35.31% (0.35313) | 96.94th | v4 (v2025.03.14) |
| May 2, 2025 | 70.93% (0.70931) | 98.61th | v4 (v2025.03.14) |
| Mar 30, 2025 | 75.64% (0.75637) | 98.84th | v4 (v2025.03.14) |
| Mar 29, 2025 | 71.65% (0.71649) | 98.30th | v4 (v2025.03.14) |
| Mar 17, 2025 | 75.64% (0.75637) | 98.83th | v4 (v2025.03.14) |
| Dec 17, 2024 | 43.27% (0.43267) | 97.41th | v3 (v2023.03.01) |
| Nov 24, 2024 | 80.42% (0.80425) | 98.43th | v3 (v2023.03.01) |
| Oct 16, 2024 | 74.39% (0.74385) | 98.20th | v3 (v2023.03.01) |
| Sep 8, 2024 | 79.91% (0.79912) | 98.36th | v3 (v2023.03.01) |
| Jun 24, 2024 | 82.24% (0.82241) | 98.42th | v3 (v2023.03.01) |
| May 17, 2024 | 86.78% (0.86779) | 98.59th | v3 (v2023.03.01) |
| Jul 22, 2023 | 85.58% (0.85581) | 98.07th | v3 (v2023.03.01) |
| Jun 17, 2023 | 90.16% (0.90165) | 98.29th | v3 (v2023.03.01) |
| May 12, 2023 | 92.97% (0.92970) | 98.54th | v3 (v2023.03.01) |
| Mar 7, 2023 | 93.18% (0.93181) | 98.46th | v3 (v2023.03.01) |
| Mar 6, 2023 | 11.00% (0.10995) | 94.86th | v2 (v2022.01.01) |
| Apr 1, 2022 | 11.00% (0.10995) | 94.44th | v2 (v2022.01.01) |
| Feb 4, 2022 | 11.00% (0.10995) | 88.52th | v2 (v2022.01.01) |
References (10)
- http://lists.grok.org.uk/pipermail/full-disclosure/2007-August/065401.html mailing-listx_refsource_FULLDISC
- http://lists.grok.org.uk/pipermail/full-disclosure/2007-August/065402.html mailing-listx_refsource_FULLDISC
- http://secunia.com/advisories/26547 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://securityreason.com/securityalert/3042 third-party-advisoryx_refsource_SREASON
- http://securitytracker.com/id?1018591 vdb-entryx_refsource_SECTRACK
- http://www.cisco.com/warp/public/707/cisco-sr-20070821-sip.shtml vendor-advisoryx_refsource_CISCO
- http://www.osvdb.org/36695 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/25378 vdb-entryx_refsource_BIDExploit
- http://www.vupen.com/english/advisories/2007/2928 vdb-entryx_refsource_VUPENVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/36125 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://lists.grok.org.uk/pipermail/full-disclosure/2007-August/065401.html | mailing-listx_refsource_FULLDISC | |
| http://lists.grok.org.uk/pipermail/full-disclosure/2007-August/065402.html | mailing-listx_refsource_FULLDISC | |
| http://secunia.com/advisories/26547 | third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory | |
| http://securityreason.com/securityalert/3042 | third-party-advisoryx_refsource_SREASON | |
| http://securitytracker.com/id?1018591 | vdb-entryx_refsource_SECTRACK | |
| http://www.cisco.com/warp/public/707/cisco-sr-20070821-sip.shtml | vendor-advisoryx_refsource_CISCO | |
| http://www.osvdb.org/36695 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/bid/25378 | vdb-entryx_refsource_BIDExploit | |
| http://www.vupen.com/english/advisories/2007/2928 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/36125 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.