What is CVE-2026-0297?

CVE-2026-0297 is GlobalProtect App: Buffer Overflow Vulnerability during UDP Tunnel Handshake. The supplied enrichment data classifies it as Remote Code Exec mapped to CWE-787 CWE-787.

Which versions are affected?

Affected product and version evidence is listed in the product table above. Current public advisories should be checked for exact version scope before patch targeting is finalized.

Is there active exploitation?

Exploitation is reported, but no independent confirmation is available in the sources we have. If exploitation is not confirmed from current sources, teams should document that status and continue monitoring KEV, vendor, and telemetry updates.

No. CVE-2026-0297 is not listed in CISA KEV in the supplied enrichment data. KEV status should be monitored because it can change after initial disclosure or after exploitation becomes publicly confirmed.

Is there a public exploit?

11 public PoC repositories reported; 2 marked weaponized in current dataset. Public exploit or PoC availability should raise triage priority, especially for exposed or business-critical systems.

How can defenders detect it?

Start with EDR process telemetry, host service logs where available. Look for vulnerability-class behavior, product errors, suspicious authentication events, exploit probes, and abnormal process activity based only on evidence that applies to the affected product.

How should teams prioritize it?

Prioritize CVE-2026-0297 using CVSS 5.2, EPSS 0%, KEV status, public PoC status, and asset exposure. Internet-facing, privileged, or business-critical deployments should be handled first.

Are workarounds available?

Workarounds are not confirmed from current sources. Fixed-version evidence is listed in the mitigation section above.

Which threat actors are linked publicly?

No public threat actor linkage is confirmed from current sources. Do not attribute exploitation to a threat actor unless the source evidence explicitly supports that linkage.

What should be done in the next 24 hours?

Identify exposed assets running affected vendor/product/version combinations. Prioritize based on EPSS, PoC availability, and external exposure. Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class. Open remediation tickets with affected assets, owners, evidence status, and detection coverage so decisions are traceable.

mediumRemote Code Execpublic exploit

CVE-2026-0297

CVE-2026-0297 — GlobalProtect App: Buffer Overflow Vulnerability during UDP Tunnel Handshake

A buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect™ app that enables a man-in-the-middle (MitM) attacker or a rogue gateway to disrupt system processes and potentially execute arbitrary code with elevated privileges (SYSTEM privileges on Windows, and root privileges on macOS and Linux).

Published Aug 13, 2026Updated Aug 13, 2026Sources: NVD, Palo Alto Networks (CNA), GitHub, GitHub Security Advisory, SOCRadar CTI

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.

Exploitation

Reported

not confirmed by CISA

EPSS

ahead of 0% of scored CVEs

Affects

Palo Alto

8 products listed

CVSS base

5.2

medium

Remediation

The vendor's own words where we have them.

VERSION MINOR VERSION SUGGESTED SOLUTION GlobalProtect App 6.3/6.2 on Linux 6.2.0 through 6.3.3-h14 Upgrade to 6.3.3-h15 or later. GlobalProtect App 6.0 on Linux 6.0.0 through 6.0.14 Upgrade to 6.0.15 or later. GlobalProtect App 6.3 on macOS 6.3.0 through 6.3.3-h13 Upgrade to 6.3.3-h14 (6.3.3-1121) or later. GlobalProtect App 6.2 on macOS 6.2.0 through 6.2.8-h12 Upgrade to 6.2.8-h13 (6.2.8-1045) or later. GlobalProtect App 6.0 on macOS 6.0.0 through 6.0.14 Upgrade to 6.0.15 or later. GlobalProtect App 6.3 on Windows 6.3.0 through 6.3.3-h13 Upgrade to 6.3.3-h14 (6.3.3-1121) or later. GlobalPro…

First 24 hours

Ordered from the record's own fields — exposure first, because you cannot patch what you have not found.

Identify exposed assets running affected vendor/product/version combinations.
Prioritize based on EPSS, PoC availability, and external exposure.
Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class.

Affected scope

Vendor, product and version as the advisories word them.

Vendor	Product	Versions	Status
Palo Alto	GlobalProtect App	6.3.0 to < 6.3.3-h15	Vulnerable
Palo Alto	GlobalProtect App	6.2.0	Vulnerable
Palo Alto	GlobalProtect App	6.0.0 to < 6.0.15	Vulnerable
Palo Alto	GlobalProtect App	6.3.0 to < 6.3.3-h14	Vulnerable
Palo Alto	GlobalProtect App	6.2.0 to < 6.2.8-h13	Vulnerable
Palo Alto	GlobalProtect App	6.0.0 to < 6.0.15	Vulnerable
Palo Alto	GlobalProtect App	6.3.0 to < 6.3.5	Vulnerable
Palo Alto	GlobalProtect App	6.0.0 to < 6.0.15	Vulnerable

Every base score collected

Sources score independently and disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Source
5.2	CVSS 4.0	medium	—	—	Palo Alto Networks (CNA)

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber

What this weakness leads to

MITRE's own consequences and mitigations for the weakness class — the authority's wording, not guidance derived from the CVSS vector.

MITRE

CWE-787 · Out-of-bounds Write

Modify Memory
DoS: Crash, Exit, or Restart
Execute Unauthorized Code or Commands::

Mitigation: Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer. Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.

Weakness & attack patterns

CWE-787

Inferred from the weakness class — not observed against this CVE.

CAPEC-242 · Code InjectionCAPEC-35 · Leverage Executable Code in Non-Executable Files

Public exploit

Capability, not use: code existing is a different claim from anyone running it.

Repositories

2 of the 5 sampled are weaponized

Detection

Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.

Monitor for scanner or exploit-pattern traffic after 11 public PoC repositories were reported.

EDR process telemetryhost service logs

Timeline

What happened to this CVE, newest first — with the readings a source repeats on a schedule counted underneath rather than listed.

2026
Added · CVSS 3.1 5.2
Aug 13, 2026 · NVD
Initial · CVE published
Aug 13, 2026 · NVD
Added · GHSA-pc3v-5r9c-7gm7 published (medium)
Aug 13, 2026 · GitHub Security Advisory
Reported · Initial Publication.
Aug 12, 2026 · Palo Alto Networks

References

3 on the record

security.paloaltonetworks.com/CVE-2026-0297
Vendor Advisory
nvd.nist.gov/vuln/detail/CVE-2026-0297
NVD
github.com/advisories/GHSA-pc3v-5r9c-7gm7
Exploit, Third Party Advisory

Coverage

2 stories from the feeds we poll

Elsewhere on this site

Palo Altoevery CVE for this vendor
Remote Code Execsame class
CWE-787other pages naming this weakness

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record1

What should defenders know first?

CVE-2026-0297 is GlobalProtect App: Buffer Overflow Vulnerability during UDP Tunnel Handshake, a medium vulnerability affecting GlobalProtect App from Palo Alto Networks. The current evidence does not list it in CISA KEV, and the exploit status is: Exploitation is reported, but no independent confirmation is available in the sources we have. Public exploit evidence is: 11 public PoC repositories reported; 2 marked weaponized in current dataset. The affected-version evidence is listed in the key facts and affected products tables. Defenders should first verify whether exposed or business-critical assets run those versions, then apply vendor patches or mitigations, restrict reachable attack surface, and preserve logs for detection review. CVSS 5.2 describes technical severity, while EPSS 0% helps estimate near-term exploit likelihood; neither replaces asset context. Unknown fields should remain explicit in tickets, and threat actor, IOC, victimology, or payload claims should not be added unless a cited source supports them. Monitor CISA KEV, vendor advisories, NVD changes, public PoC repositories, and internal telemetry for update triggers.