How severe is CVE-2023-20122?

CVE-2023-20122 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-20122 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-20122?

CVE-2023-20122 affects Cisco Identity Services Engine. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-20122?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-20122 published?

CVE-2023-20122 was published on 2023-04-05 and last updated on 2026-06-17.

CVE-2023-20122

CVE-2023-20122 is a medium-severity vulnerability in Cisco Identity Services Engine with a CVSS 3.x base score of 6.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Medium (CVSS 3.x base score 6.0)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Cisco Identity Services Engine
Published: 2023-04-05
Last modified: 2026-06-17

Description

Multiple vulnerabilities in the restricted shell of Cisco Evolved Programmable Network Manager (EPNM), Cisco Identity Services Engine (ISE), and Cisco Prime Infrastructure could allow an authenticated, local attacker to escape the restricted shell and gain root privileges on the underlying operating system. For more information about these vulnerabilities, see the Details section of this advisory.

Frequently asked questions

What is CVE-2023-20122?: Multiple vulnerabilities in the restricted shell of Cisco Evolved Programmable Network Manager (EPNM), Cisco Identity Services Engine (ISE), and Cisco Prime Infrastructure could allow an authenticated, local attacker to escape the restricted shell and gain root privileges on the underlying operating system. For more information about these vulnerabilities, see the Details section of this advisory.
How severe is CVE-2023-20122?: CVE-2023-20122 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-20122 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-20122?: CVE-2023-20122 affects Cisco Identity Services Engine. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-20122?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-20122 published?: CVE-2023-20122 was published on 2023-04-05 and last updated on 2026-06-17.

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-adeos-MLAyEcvk

Affected products (1)

cpe:2.3:a:cisco:identity_services_engine:3.2:-:*:*:*:*:*:*

More vulnerabilities in Cisco Identity Services Engine

CVE-2025-20337 — Critical (CVSS 10.0): A vulnerability in a specific API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to…
CVE-2025-20282 — Critical (CVSS 10.0): A vulnerability in an internal API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to…
CVE-2025-20281 — Critical (CVSS 10.0): A vulnerability in a specific API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to…
CVE-2021-44228 — Critical (CVSS 10.0): Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in…
CVE-2011-3290 — Critical (CVSS 10.0): Cisco Identity Services Engine (ISE) before 1.0.4.MR2 has default Oracle database credentials, which allows remote…
CVE-2026-20186 — Critical (CVSS 9.9): A vulnerability in Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to execute…

All CVEs affecting Cisco Identity Services Engine →

Other CWE-78 (OS Command Injection) vulnerabilities

CVE-2026-56004 — Critical (CVSS 10.0): A shellcode injection in the mercurial handler of the obs tar_scm source service before version 0.12.4 could be used by…
CVE-2026-56415 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability within the debug.pl script that is…
CVE-2026-56413 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability in the ms_service.pl service, which listens…
CVE-2026-49869 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, AuthenticationFilter in…
CVE-2026-49261 — Critical (CVSS 10.0): MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through…
CVE-2026-10520 — Critical (CVSS 10.0): An OS Command Injection vulnerability in Ivanti Sentry before the R10.5.2, R10.6.2 and R10.7.1 versions allows a…

Browse all CWE-78 (OS Command Injection) vulnerabilities →