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01 Record

CVE-2022-20968

A vulnerability in the Cisco Discovery Protocol processing feature of Cisco IP Phone 7800 and 8800 Series firmware could allow an unauthenticated, adjacent attacker to cause a stack overflow on an

HighPUBLISHEDCNA: cisco
CNA base score8.1 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
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02 Description

A vulnerability in the Cisco Discovery Protocol processing feature of Cisco IP Phone 7800 and 8800 Series firmware could allow an unauthenticated, adjacent attacker to cause a stack overflow on an

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
6.35% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 93.4% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-12-08 16:13Z3 YR AGO
Last updated
2024-08-03 02:31Z2 YR AGO
Reserved
2021-11-02
Assigning CNA
cisco
Record state
PUBLISHED
Severity
High (CVSS 8.1)
CNA CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weaknesses
Data version
5.1
Document digest
eb214b124029560a1b6943b6e13dc3062270d93069b1ae0a9f37cb5121add4f1

05 Affected products

VendorProductVersionsPlatforms
CiscoCisco Session Initiation Protocol (SIP) Software9.3(4) 3rd Party, 9.3(4)SR3 3rd Party, 9.3(4)SR1 3rd Party, 9.3(4)SR2 3rd Party, 11.5(1), 11.7(1), 11.0(0.7) MPP, 11.0(1) MPP, 11.0(1), 11.5(1)SR1, 11-0-1MSR1-1, 10.4(1) 3rd Party, 10.3(1.11) 3rd Party, 10.2(2), 10.2(1)SR1, 10.1(1.9), 10.1(1)SR2, 10.2(1), 10.1(1)SR1, 10.4(1)SR2 3rd Party, 10.3(1), 10.3(1)SR4b, 10.3(1)SR5, 10.3(1.9) 3rd Party, 10.3(2), 10.3(1)SR4, 10.3(1)SR2, 10.3(1)SR3, 10.3(1)SR1, 12.6(1), 12.1(1), 12.5(1)SR1, 12.5(1)SR2, 12.5(1), 12.5(1)SR3, 12.6(1)SR1, 12.7(1), 12.1(1)SR1, 12.0(1), 12.0(1)SR2, 12.0(1)SR1, 12.0(1)SR3, 12.8(1), 12.8(1)SR1, 12.8(1)SR2, 10.3(1)SR6, 10.3(1)SR7, 12.7(1)SR1, 14.0(1)SR1, 14.0(1), 14.0(1)SR2, 14.0(1)SR3, 14.1(1), 14.1(1)SR1—

06 References