9.8

CVE-2022-30767: denx u-boot Classic Buffer Overflow

Modified
AliasesUBUNTU-CVE-2022-30767DEBIAN-CVE-2022-30767
Published 16-05-2022Last modified 03-11-2025

Vulnerability summary

CVE-2022-30767 is a critical (CVSS 9.8) Classic Buffer Overflow vulnerability in denx u-boot. EPSS estimates a 2.73% chance of exploitation in the next 30 days, higher than 85.9% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
2.73%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 5 · Related 4
DLA-4150-1SUSE-SU-2022:2052-1SUSE-SU-2022:2053-1SUSE-SU-2022:2054-1USN-5764-1

Timeline

  1. 16-05-2022
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

nfs_lookup_reply in net/nfs.c in Das U-Boot through 2022.04 (and through 2022.07-rc2) has an unbounded memcpy with a failed length check, leading to a buffer overflow. NOTE: this issue exists because of an incorrect fix for CVE-2019-14196.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.73%

Chance of exploitation in the next 30 days

Percentile

86%

Versus all other CVEs

30-day change

Increase +0.04 pp

From 2.69% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Uboot Rce Nfs Vulnerability

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • u-boot< 2022.07+dfsg-1
Denx1 product
  • u-boot≤ 2022.04 | 2022.07:rc1 | 2022.07:rc2
Fedoraproject1 product
Ubuntu1 product
  • u-bootAll versions (No fix recorded) | < 2020.10+dfsg-1ubuntu0~18.04.3 | < 2021.01+dfsg-3ubuntu0~20.04.5 | < 2022.01+dfsg-2ubuntu2.3

4 vendors · 4 products

References

10 links