8.2

CVE-2024-21905: qnap systems inc. qts Integer Overflow or Wraparound

CVSS: 8.2v3.1HighAnalyzed
Published 26-04-2024Last modified 12-08-2024

Vulnerability summary

CVE-2024-21905 is a high (CVSS 8.2) Integer Overflow or Wraparound vulnerability in qnap systems inc. qts. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.3% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.2/10
010
High · v3.1 (NVD)
EPSS score
0.46%
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. 26-04-2024
    PublishedVulnerability first disclosed.
  2. 12-08-2024
    Last modifiedVulnerability information updated.

Description

An integer overflow or wraparound vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to compromise the security of the system via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.3.2578 build 20231110 and later QuTS hero h5.1.3.2578 build 20231110 and later QuTScloud c5.1.5.2651 and later

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.46%

Chance of exploitation in the next 30 days

Percentile

38%

Versus all other CVEs

30-day change

0.00 pp

From 0.46% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.46%

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

Qnap3 products
  • qts≥ 5.0.0, < 5.1.3.2578 | 5.1.3.2578
  • quts_hero≥ h5.0.0, < h5.1.3.2578 | h5.1.3.2578
  • qutscloud≥ c5.0.0.1919, < c5.1.5.2651
Qnap systems inc.3 products
  • qts≥ 5.1.x, < 5.1.3.2578 build 20231110
  • quts hero≥ h5.1.x, < h5.1.3.2578 build 20231110
  • qutscloud≥ c5.x.x, < c5.1.5.2651

2 vendors · 6 products

References

1 links