9.8

CVE-2021-43082: apache software foundation apache traffic server Classic Buffer Overflow

CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2021-43082DEBIAN-CVE-2021-43082
Published 03-11-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-43082 is a critical (CVSS 9.8) Classic Buffer Overflow vulnerability in apache software foundation apache traffic server. EPSS estimates a 2.41% chance of exploitation in the next 30 days, higher than 83.8% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
2.41%
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. 03-11-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the stats-over-http plugin of Apache Traffic Server allows an attacker to overwrite memory. This issue affects Apache Traffic Server 9.1.0.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.41%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.41% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.41%

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

Apache1 product
Apache software foundation1 product
Debian1 product
  • trafficserver< 9.1.1+ds-1
Ubuntu1 product
  • trafficserverAll versions (No fix recorded)

4 vendors · 4 products

References

7 links