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CVE-2022-20848

25
FAUCET Score

CVE-2022-20848 describes a denial-of-service vulnerability in Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst 9100 Series Access Points. This flaw stems from improper processing of UDP datagrams, allowing an unauthenticated, remote attacker to trigger a device reload. Rated 7.5 HIGH on CVSS, it requires no user interaction or complex attack vectors, with the sole impact being system availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
17.6.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:17.6.1:*:*:*:*:*:*:*
17.6.3CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:17.6.3:*:*:*:*:*:*:*
17.9.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:17.9.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.88%
Probability of exploitation in next 30 days
EPSS Percentile
55.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0088 is in the 30th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-udp-dos-XDyEwhNz
Vendor Advisory