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CVE-2022-24668

19
FAUCET Score

CVE-2022-24668 is a Denial of Service vulnerability affecting swift-nio-http2 versions 1.0.0 to 1.19.1, where a logical error causes an application to crash upon receiving specially crafted ALTSVC or ORIGIN frames. This vulnerability has a CVSS score of 7.5 (HIGH) due to its network attack vector, low attack complexity, and high impact on availability, as it can immediately crash affected services. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.0.0, < 1.19.2CPE matchmatch criteria
cpe:2.3:a:apple:swiftnio_http\/2:*:*:*:*:*:swift:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.12%
Probability of exploitation in next 30 days
EPSS Percentile
62.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0112 is in the 41st percentile among its peer group of 51,506 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Patch Available

Vendor Patches (3)

djangopatch availablevia llm_extracted
falcopatch availablevia llm_extracted
swiftpatch availablevia ghsa
Product: github.com/apple/swift-nio-http2Fixed in: 1.19.2

Vendor Advisories (3)

swiftGHSA-pgfx-g6rc-8cjvhigh

swift-nio-http2 vulnerable to denial of service via ALTSVC or ORIGIN frames

May 18, 2023
falcollm-falco-f9a959de6e99901e

Denial of service in swift-nio-http2 from ALTSVC or ORIGIN frames.

djangollm-django-382064e233da1353

CVE-2022-24668

References

github.com / apple/swift-nio-http2/security/advisories/GHSA-pgfx-g6rc-8cjv
Third Party Advisory