7.5

CVE-2020-15689: embedthis appweb NULL Pointer Dereference

CVSS: 7.5v3.1HighModified
Published 13-07-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-15689 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in embedthis appweb. EPSS estimates a 1.33% chance of exploitation in the next 30 days, higher than 70.5% 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
1.33%
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. 13-07-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Appweb before 7.2.2 and 8.x before 8.1.0, when built with CGI support, mishandles an HTTP request with a Range header that lacks an exact range. This may result in a NULL pointer dereference and cause a denial of service.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.33%

Chance of exploitation in the next 30 days

Percentile

71%

Versus all other CVEs

30-day change

0.00 pp

From 1.33% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.33%

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

Embedthis1 product
  • appweb< 7.2.2 | ≥ 8.0.0, < 8.1.0

1 vendor · 1 product

References

1 links