CVE-2023-20079

highpriority · track · 34EPSS 0.103 · 96 %ileDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

10.3% (96th) EPSS

CVSS 7.5 · high

Is it mine?

35 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Multiple vulnerabilities in the web-based management interface of certain Cisco IP Phones could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. For more information about these vulnerabilities, see the Details section of this advisory.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedCisco IP Phones with Multiplatform Firmwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco Session Initiation Protocol (SIP) Softwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

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

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.9–9.8

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@cisco.com USexploitability 3.9 · impact 5.9

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Cisco PSIRT US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-121USCWE-20US

affected products (35)

Products and version ranges known to be affected.

Cisco IP Phone 6800all versionscert_bundDEcpe:/h:cisco:ip_phone:6800
Cisco IP Phone 7800all versionscert_bundDEcpe:/h:cisco:ip_phone:7800
Cisco IP Phone 8800all versionscert_bundDEcpe:/h:cisco:ip_phone:8800
Cisco Unified IP Phone 7900all versionscert_bundDEcpe:/h:cisco:unified_ip_phones:7900_series
Cisco Unified IP Phone 8831all versionscert_bundDEcpe:/h:cisco:unified_ip_phones:8831
Cisco Cisco IP Phones with Multiplatform Firmwareall versionscisco_csafUS
Cisco Cisco Session Initiation Protocol (SIP) Softwareall versionscisco_csafUS
Cisco Cisco IP Phones with Multiplatform Firmware≤ n/aenisa_euvdEU
Cisco Systems Inc. Cisco IP Phone 6800 Series with Multiplatformall versionsfstec_bduRU
Cisco Systems Inc. Cisco IP Phone 7800 Series with Multiplatformall versionsfstec_bduRU
Cisco Systems Inc. Cisco IP Phone 8800 Series with Multiplatformall versionsfstec_bduRU
Cisco Systems Inc. Cisco Unified IP Conference Phone 8831all versionsfstec_bduRU
Cisco Systems Inc. Cisco Unified IP Conference Phone 8831 with Multiplatformall versionsfstec_bduRU
Cisco Systems Inc. Cisco Unified IP Phone 7900 Seriesall versionsfstec_bduRU
cisco ip phone 6825 firmware< 11.3.7sr1nvdUScpe:2.3:o:cisco:ip_phone_6825_firmware:*:*:*:*:*:*:*:*
cisco ip phone 6841 firmware< 11.3.7sr1nvdUScpe:2.3:o:cisco:ip_phone_6841_firmware:*:*:*:*:*:*:*:*
cisco ip phone 6851 firmware< 11.3.7sr1nvdUScpe:2.3:o:cisco:ip_phone_6851_firmware:*:*:*:*:*:*:*:*
cisco ip phone 6861 firmware< 11.3.7sr1nvdUScpe:2.3:o:cisco:ip_phone_6861_firmware:*:*:*:*:*:*:*:*
cisco ip phone 6871 firmware< 11.3.7sr1nvdUScpe:2.3:o:cisco:ip_phone_6871_firmware:*:*:*:*:*:*:*:*
cisco ip phone 7811 firmware< 11.3.7sr1nvdUScpe:2.3:o:cisco:ip_phone_7811_firmware:*:*:*:*:*:*:*:*

showing 20 of 35

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0536Cisco IP Phone: Mehrere SchwachstellenDeutsch2023-03-01csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Cisco IP Phone und Cisco Unified IP Phone ausnutzen, um beliebigen Programmcode mit Administratorrechten auszuführen oder einen Denial of Service Zustand herbeizuführen.
cisco-sa-ip-phone-cmd-inj-KMFynVcPCisco IP Phone 6800, 7800, and 8800 Series Web UI Vulnerabilities2023-03-01csaf · cisco_csafUS
Multiple vulnerabilities in the web-based management interface of certain Cisco IP Phones could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. For more information about these vulnerabilities, see the Details ["#details"] section of this advisory. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund cisco_csaf nvd NVD CVE.org MITRE

published 2023-03-03modified 2026-06-17

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+16119 more

references (6)

External citations — patches, advisories, analysis.

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