How severe is CVE-2019-1580?

CVE-2019-1580 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-1580 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-1580?

CVE-2019-1580 affects Paloaltonetworks Pan-os. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-1580?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-1580 published?

CVE-2019-1580 was published on 2019-08-23 and last updated on 2026-06-17.

CVE-2019-1580

CVE-2019-1580 is a critical-severity vulnerability in Paloaltonetworks Pan-os with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Paloaltonetworks Pan-os
Published: 2019-08-23
Last modified: 2026-06-17

Description

Memory corruption in PAN-OS 7.1.24 and earlier, PAN-OS 8.0.19 and earlier, PAN-OS 8.1.9 and earlier, and PAN-OS 9.0.3 and earlier will allow a remote, unauthenticated user to craft a message to Secure Shell Daemon (SSHD) and corrupt arbitrary memory.

Frequently asked questions

What is CVE-2019-1580?: Memory corruption in PAN-OS 7.1.24 and earlier, PAN-OS 8.0.19 and earlier, PAN-OS 8.1.9 and earlier, and PAN-OS 9.0.3 and earlier will allow a remote, unauthenticated user to craft a message to Secure Shell Daemon (SSHD) and corrupt arbitrary memory.
How severe is CVE-2019-1580?: CVE-2019-1580 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-1580 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-1580?: CVE-2019-1580 affects Paloaltonetworks Pan-os. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-1580?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-1580 published?: CVE-2019-1580 was published on 2019-08-23 and last updated on 2026-06-17.

References

https://security.paloaltonetworks.com/CVE-2019-1580

Affected products (1)

cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*

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