7.5

CVE-2022-31394: hyper

CVSS: 7.5v3.1HighModified
AliasesSUSE-SU-2024:0090-1DEBIAN-CVE-2022-31394openSUSE-SU-2024:12727-1
Published 21-02-2023Last modified 17-03-2025
Open JSON

Vulnerability summary

CVE-2022-31394 is a high (CVSS 7.5) vulnerability in hyper. EPSS estimates a 1.08% chance of exploitation in the next 30 days, higher than 64.4% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
1.08%
0%100%
Low · -0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 4 · Related 5
SUSE-SU-2023:1844-1SUSE-SU-2023:2603-1SUSE-SU-2023:2637-1SUSE-SU-2023:3526-1UBUNTU-CVE-2022-31394

Timeline

  1. 21-02-2023
    PublishedVulnerability first disclosed.
  2. 17-03-2025
    Last modifiedVulnerability information updated.

Description

Hyperium Hyper before 0.14.19 does not allow for customization of the max_header_list_size method in the H2 third-party software, allowing attackers to perform HTTP2 attacks.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

1.08%

Chance of exploitation in the next 30 days

Percentile

64%

Versus all other CVEs

30-day change

-0.01 pp

From 1.08% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.08%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Hyper

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Opensuse4 products
  • pijul&distro=openSUSE Tumbleweed< 1.0.0~beta.4-1.1
  • rustup&distro=openSUSE Tumbleweed< 1.25.2~0-2.1
  • sccache&distro=openSUSE Tumbleweed< 0.4.0pre.7~0-2.1
  • wasm-pack&distro=openSUSE Tumbleweed< 0.11.0~0-1.1
Suse2 products
  • gstreamer-plugins-rs&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP5< 0.8.2-150400.3.3.1
  • gstreamer-plugins-rs&distro=SUSE Linux Enterprise Real Time 15 SP4< 0.8.2-150400.3.3.1
Debian1 product
  • rust-hyper< 0.14.19-1
Hyper1 product

4 vendors · 8 products

References

8 links