How severe is CVE-2025-20257?

CVE-2025-20257 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2025-20257 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-20257?

CVE-2025-20257 affects Cisco Secure Network Analytics. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-20257?

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

Does CVE-2025-20257 have an EU (EUVD) identifier?

Yes. CVE-2025-20257 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-16018.

When was CVE-2025-20257 published?

CVE-2025-20257 was published on 2025-05-21 and last updated on 2026-06-17.

CVE-2025-20257

CVE-2025-20257 is a medium-severity vulnerability in Cisco Secure Network Analytics with a CVSS 3.x base score of 6.5. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-16018
Weakness: CWE-863
Affected product: Cisco Secure Network Analytics
Published: 2025-05-21
Last modified: 2026-06-17

Description

A vulnerability in an API subsystem of Cisco Secure Network Analytics Manager and Cisco Secure Network Analytics Virtual Manager could allow an authenticated, remote attacker with low privileges to generate fraudulent findings that are used to generate alarms and alerts on an affected product. Thi vulnerability is due to insufficient authorization enforcement on a specific API. An attacker could exploit this vulnerability by authenticating as a low-privileged user and performing API calls with crafted input. A successful exploit could allow the attacker to obfuscate legitimate findings in analytics reports or create false indications with alarms and alerts on an affected device.

Frequently asked questions

What is CVE-2025-20257?: A vulnerability in an API subsystem of Cisco Secure Network Analytics Manager and Cisco Secure Network Analytics Virtual Manager could allow an authenticated, remote attacker with low privileges to generate fraudulent findings that are used to generate alarms and alerts on an affected product. Thi vulnerability is due to insufficient authorization enforcement on a specific API. An attacker could exploit this vulnerability by authenticating as a low-privileged user and performing API calls with crafted input. A successful exploit could allow the attacker to obfuscate legitimate findings in analytics reports or create false indications with alarms and alerts on an affected device.
How severe is CVE-2025-20257?: CVE-2025-20257 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2025-20257 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-20257?: CVE-2025-20257 affects Cisco Secure Network Analytics. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-20257?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-20257 have an EU (EUVD) identifier?: Yes. CVE-2025-20257 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-16018.
When was CVE-2025-20257 published?: CVE-2025-20257 was published on 2025-05-21 and last updated on 2026-06-17.

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sna-apiacv-4B6X5ysw

Affected products (1)

cpe:2.3:a:cisco:secure_network_analytics:7.5.2:-:*:*:*:*:*:*

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