PLATEAUMinimal movement since 2026-08-06, 53 days at 0.01, as of 2026-09-28. arc-rules@v1
Foresight · where to check next
This record is one instance of CWE-74, improper neutralization of special elements in output used by a downstream component ('injection'). The index holds 5803 prior instances of this class, 13 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1
Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is
Running Cisco IOS XE Software? Check your version
A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.
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Harm, if it fires from the vector and the weakness
Written for the ticket you're about to file.
Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
CISA KEV & Federal Remediation Deadline from the record and CISA
The fix, and how long it's been waiting.
Fixed inNo fix version in held sources, as the index stood on 28 Sep 2026.
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.
BOD 26-04 deadlineIf the system is reachable from the internet: 14 days. If not: fix at the next system upgrade.derived
Show full BOD 26-04 deadline
CISA has not scored it, so the directive's own defaults apply: automatable no, technical impact total. Calendar days from the KEV listing or from when you find it on a system, whichever is first. Federal agencies are bound from 7 Dec 2026, and contracts often carry it to suppliers. The directive and its table
A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.
Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$28,600over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate
$28,600 = $4.99M incident cost x 1 exposure x 0.00573 likelihood
udv@v1 · unaudited · wrong for you until you say what you run
$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.
Attack path
What it is stated by the CNA
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.
The vulnerabilities tracked by CVE-2026-20272 are related to issues with improper neutralization of special elements that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-74. receipt
NVD's analysis a second authority
weakness
CWE-74
affected versions
cisco ios xe 16.6.2; cisco ios xe 16.6.3; cisco ios xe 16.6.4; and 264 more, listed in full below
4 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt
The full biography
The record had been public for 1 month when this index was last written.
Published 2026-08-05 receipt · Index as of 2026-09-28 derived
The pattern, elsewhere
This record is one instance of CWE-74, improper neutralization of special elements in output used by a downstream component ('injection'). The index holds 5803 prior instances of this class, 13 KEV-listed. The nearest of its KEV-listed records are drawn beside this. cwe-consequences@4.20
CVE-2022-35914matches 8 of 8KEV listed · 2022receipt
CVE-2020-17496matches 8 of 8KEV listed · 2020receipt
CVE-2013-2251matches 8 of 8KEV listed · 2013receipt
CVE-2022-46169 · cactimatches 8 of 9KEV listed · 2022receipt
"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1
5803 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.
No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.
Siblings and hubs
Records related to this one
No record cites this identifier and it carries no alias. Its defect family is below.
Its defect family
cisco ios xe software
Of the 7 records in this advisory that state one, this holds the highest EPSS percentile: 0.33968.
This record is one of a group, and the group's page describes all of them. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.