IOS And IOS XE

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

IOS And IOS XE

Product reference — IOS And IOS XE by Cisco · sector: Network & Infrastructure. Cumulative disclosure record for this product across the archive.

Product totals

Disclosures & known-exploited
	All-time	YTD
CVEs	4	0
KEV entries	4	0

Rate & severity
KEV/100	Med CVSS	Med EPSS	C	H	M	L
100.0	—	.6886	0	0	0	0

KEV/100 = KEV entries ÷ CVEs × 100. Med CVSS / Med EPSS are medians over this product's disclosures. C/H/M/L = disclosures by CVSS severity band.

Monthly disclosures

Trend (by first-seen month, full archive): █▁▁▁█▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁█▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁█▁▁▁▁▁▁▁▁▁▁▁

Last 12 months (new CVEs by first-seen day)
Month	New CVEs
2025-09	1
2025-10	0
2025-11	0
2025-12	0
2026-01	0
2026-02	0
2026-03	0
2026-04	0
2026-05	0
2026-06	0
2026-07	0
2026-08	0

Notable CVEs

Ranked by the published formula: KEV → EPSS → CVSS → CVE ID.

Notable (ranked)
CVE	CVSS	EPSS %ile	Severity	KEV	First seen
CVE-2018-0171	—	99.9	—	YES	2021-11-03
CVE-2017-3881	—	99.9	—	YES	2022-03-25
CVE-2025-20352	—	98.5	—	YES	2025-09-29
CVE-2023-20109	—	82.3	—	YES	2023-10-10

Recent CVEs

Most recently seen
CVE	CVSS	EPSS %ile	Severity	KEV	First seen
CVE-2025-20352	—	98.5	—	YES	2025-09-29
CVE-2023-20109	—	82.3	—	YES	2023-10-10
CVE-2017-3881	—	99.9	—	YES	2022-03-25
CVE-2018-0171	—	99.9	—	YES	2021-11-03

KEV entries

CISA Known Exploited Vulnerabilities (newest addition first)
CVE	KEV added	CVSS	EPSS %ile	Severity
CVE-2025-20352	2025-09-29	—	98.5	—
CVE-2023-20109	2023-10-10	—	82.3	—
CVE-2017-3881	2022-03-25	—	99.9	—
CVE-2018-0171	2021-11-03	—	99.9	—

Vendor: Cisco — all products and the full vendor record.

Methodology

A product is a (vendor, product) pair as named in the affected-product data. Rate statistics are arithmetic over published figures. Counts key to first-seen day. Raw counts are not comparable across products; this is a reference page assembled from the public record, not a ranking by our judgment.