7.5

CVE-2020-7248: openwrt Out-of-bounds Write

CVSS: 7.5v3.1HighModified
Published 16-03-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-7248 is a high (CVSS 7.5) Out-of-bounds Write vulnerability in openwrt. EPSS estimates a 2.49% chance of exploitation in the next 30 days, higher than 84.4% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
2.49%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-03-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

libubox in OpenWrt before 18.06.7 and 19.x before 19.07.1 has a tagged binary data JSON serialization vulnerability that may cause a stack based buffer overflow.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.49%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.49% on 21-09-2026

21-09-202621-10-2026
EPSS score
2.49%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Openwrt1 product
  • openwrtEOL≥ 18.06.0, < 18.06.7 | 19.07.0 | 19.07.0:rc1 | 19.07.0:rc2

1 vendor · 1 product

References

3 links