6.5

CVE-2026-0249: palo alto networks globalprotect app Improper Certificate Validation

CVSS: 6.5v3.1MediumAnalyzed
Published 13-05-2026Last modified 15-05-2026
Open JSON

Vulnerability summary

CVE-2026-0249 is a medium (CVSS 6.5) Improper Certificate Validation vulnerability in palo alto networks globalprotect app. EPSS estimates a 0.11% chance of exploitation in the next 30 days, higher than 1.2% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.11%
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. 13-05-2026
    PublishedVulnerability first disclosed.
  2. 15-05-2026
    Last modifiedVulnerability information updated.

Description

Multiple improper certificate validation vulnerabilities in the Palo Alto Networks GlobalProtect™ app enables an attacker to intercept encrypted communications and potentially compromise the endpoint. This can enable a local non-administrative operating system user or an attacker on the same subnet to redirect traffic to an unauthorized server and facilitate the installation of malicious software. The GlobalProtect app on Linux, Windows, iOS and GlobalProtect UWP app are not affected.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.11%

Chance of exploitation in the next 30 days

Percentile

1%

Versus all other CVEs

30-day change

0.00 pp

From 0.11% on 22-09-2026

22-09-202622-10-2026
EPSS score
0.11%

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

Palo alto networks1 product
  • globalprotect app≥ 6.3.0, < 6.3.3-h9 (6.3.3-999) | ≥ 6.2.0, < 6.2.8-h10 (6.2.8-948) | ≥ 6.1.0, < 6.1.13 | ≥ 6.0.0, < 6.0.14 | ≥ 6.0.0, < 6.0.13
Paloaltonetworks1 product
  • globalprotect≥ 6.0.0, < 6.0.13 | ≥ 6.0.0, < 6.0.14 | ≥ 6.1.0, < 6.1.14 | ≥ 6.2.0, < 6.2.8 | ≥ 6.3.0, < 6.3.3 | 6.2.8 | 6.2.8:h1 | 6.2.8:h7 | 6.3.3:h1 | 6.3.3:h2 | 6.3.3:h3 | 6.3.3:h4 | 6.3.3:h6 | 6.3.3:h7 | 6.3.3:h8 | 6.3.3:h9

2 vendors · 2 products

References

1 links