6.5

CVE-2026-0243: palo alto networks prisma sd-wan ion Unchecked Input for Loop Condition

CVSS: 6.5v3.1MediumAnalyzed
Published 13-05-2026Last modified 14-05-2026
Open JSON

Vulnerability summary

CVE-2026-0243 is a medium (CVSS 6.5) Unchecked Input for Loop Condition vulnerability in palo alto networks prisma sd-wan ion. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.3% 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
0.17%
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. 14-05-2026
    Last modifiedVulnerability information updated.

Description

A denial of service (DoS) vulnerability in Palo Alto Networks Prisma SD-WAN ION devices enables an unauthenticated attacker in a network adjacent to a Prisma SD-WAN ION device to cause a system disruption by sending a specially crafted IPv6 packet.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

0.00 pp

From 0.17% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.17%

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
Paloaltonetworks1 product
  • prisma_sd-wan≥ 6.3.1, < 6.3.6 | ≥ 6.4.1, < 6.4.3 | ≥ 6.5.1, < 6.5.3 | 6.3.6 | 6.3.6:b6 | 6.3.6:b9 | 6.4.3 | 6.4.3:b6 | 6.5.3 | 6.5.3:b9 | 6.5.3:i-b10

2 vendors · 2 products

References

1 links