7.8

CVE-2020-8252: fedoraproject fedora

Modified
AliasesALPINE-CVE-2020-8252MGASA-2020-0398UBUNTU-CVE-2020-8252
Published 18-09-2020Last modified 30-04-2025

Vulnerability summary

CVE-2020-8252 is a high (CVSS 7.8) vulnerability in fedoraproject fedora. EPSS estimates a 0.71% chance of exploitation in the next 30 days, higher than 53.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.71%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 12 · Related 6
MGASA-2020-0372OPENSUSE-SU-2020:1616-1OPENSUSE-SU-2020:1660-1RHSA-2020:4272RHSA-2020:4903RHSA-2020:5086

Timeline

  1. 18-09-2020
    PublishedVulnerability first disclosed.
  2. 30-04-2025
    Last modifiedVulnerability information updated.

Description

The implementation of realpath in libuv < 10.22.1, < 12.18.4, and < 14.9.0 used within Node.js incorrectly determined the buffer size which can result in a buffer overflow if the resolved path is longer than 256 bytes.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.71%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.71% on 04-10-2026

04-10-202603-11-2026

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

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Alpine2 products
  • libuv< 1.38.1-r0 | < 1.39.0-r0
  • nodejs< 12.20.1-r0 | < 12.18.4-r0
Nodejs2 products
  • node≥ 4.0, < 4.* | ≥ 5.0, < 5.* | ≥ 6.0, < 6.* | ≥ 7.0, < 7.* | ≥ 8.0, < 8.* | ≥ 9.0, < 9.* | ≥ 10.0, < 10.22.1 | ≥ 11.0, < 11.* | ≥ 12.0, < 12.18.4 | ≥ 13.0, < 13.* | ≥ 14.0, < 14.9.0
  • node.js≥ 10.0.0, < 10.22.1 | ≥ 12.0.0, < 12.18.4 | ≥ 14.0.0, < 14.9.0
Debian1 product
  • libuv1< 1.39.0-1
Fedoraproject1 product
Mageia1 product
  • libuv< 1.34.2-1.1.mga7
Opensuse1 product
Ubuntu1 product
  • libuv1< 1.34.2-1ubuntu1.1

7 vendors · 9 products

References

17 links
Show all 17 references