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CVE-2022-24777

25
FAUCET Score

CVE-2022-24777 is a denial-of-service vulnerability affecting grpc-swift servers prior to version 1.7.2, caused by incorrect handling of GOAWAY frames. This flaw allows an unauthenticated attacker to crash the server with minimal effort, leading to a high impact on availability by dropping all active connections and requests. The vulnerability has a CVSS score of 7.5 (High) and is not known to be actively exploited, with no public exploit code or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.7.2CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:grpc_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
1.16%
Probability of exploitation in next 30 days
EPSS Percentile
63.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0116 is in the 42nd percentile among its peer group of 51,553 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

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
swiftpatch availablevia ghsa
Product: github.com/grpc/grpc-swiftFixed in: 1.7.2

Vendor Advisories (1)

swiftGHSA-r6ww-5963-7r95high

Denial of Service via reachable assertion

Jun 9, 2023

References

github.com / grpc/grpc-swift/commit/858f977f2a51fca2292f384cf7a108dc2e73a3bd
PatchThird Party Advisory
github.com / grpc/grpc-swift/security/advisories/GHSA-r6ww-5963-7r95
Third Party Advisory