7.5

CVE-2020-9481: apache ats Uncontrolled Resource Consumption

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2020-9481DEBIAN-CVE-2020-9481
Published 27-04-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-9481 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in apache ats. EPSS estimates a 2.39% chance of exploitation in the next 30 days, higher than 83.6% 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
2.39%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
DSA-4672-1

Timeline

  1. 27-04-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Apache ATS 6.0.0 to 6.2.3, 7.0.0 to 7.1.9, and 8.0.0 to 8.0.6 is vulnerable to a HTTP/2 slow read attack.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.39%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.39% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.39%

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

Apache2 products
  • ats6.0.0 to 6.2.3 | 7.0.0 to 7.1.9 | 8.0.0 to 8.0.6
  • traffic_server≥ 6.0.0, ≤ 6.2.3 | ≥ 7.0.0, ≤ 7.1.9 | ≥ 8.0.0, ≤ 8.0.6
Debian2 products
Ubuntu1 product
  • trafficserverAll versions (No fix recorded)

3 vendors · 5 products

References

6 links