7.5

CVE-2020-24340: altran picotcp Out-of-bounds Read

CVSS: 7.5v3.1HighModified
Published 11-12-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-24340 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in altran picotcp. EPSS estimates a 2.85% chance of exploitation in the next 30 days, higher than 86.6% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
2.85%
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. 11-12-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. The code that processes DNS responses in pico_mdns_handle_data_as_answers_generic() in pico_mdns.c does not check whether the number of answers/responses specified in a DNS packet header corresponds to the response data available in the packet, leading to an out-of-bounds read, invalid pointer dereference, and Denial-of-Service.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.85%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

0.00 pp

From 2.85% on 21-09-2026

21-09-202621-10-2026
EPSS score
2.85%

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

Altran2 products

1 vendor · 2 products

References

2 links