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Prisma Access Agent EUVDEUVD-2026-30098

| CVE-2026-0247 MEDIUM
Missing Authentication for Critical Function (CWE-306)
2026-05-13 palo_alto GHSA-cx3v-69qf-w6mx
5.9
CVSS 4.0 · Vendor: palo_alto
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Gain low-privilege local session on managed endpoint
  2. Delivery
    Identify unprotected Endpoint DLP component interface (pipe/socket/IPC)
  3. Exploit
    Send crafted unauthenticated privileged request
  4. Execution
    Bypass CWE-306 authorization check
  5. Impact
    Execute privileged DLP operation (disable policy, read telemetry, or corrupt agent state)

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication required for critical functions
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires the attacker to have an interactive local session on the targeted endpoint with at least low-privilege user-level access (PR:L per CVSS:4.0 vector), and the Prisma Access Agent with the Endpoint DLP component must be installed and running. The CVSS:4.0 attack vector is strictly local (AV:L), meaning remote unauthenticated exploitation is not possible - network-based or unauthenticated attack paths are excluded. No additional attack requirements are needed (AT:N), ruling out race conditions or environmental prerequisites. Exploitation is limited by: (1) mandatory local access to the endpoint, (2) low-privilege authenticated session required, (3) SSVC Automatable: no - mass or worm-like exploitation is not feasible, (4) Endpoint DLP component must be active on the host. These conditions meaningfully constrain the realistic attacker pool to insiders, physically present actors, or post-compromise lateral movers who have already established local access.

Impact

Despite a moderate CVSS 4.0 base score of 5.9, the SSVC technical impact is rated 'total', reflecting the triple-high impact scores (VC:H/VI:H/VA:H) on the vulnerable component - meaning a successful exploit fully compromises the DLP subsystem's confidentiality, integrity, and availability. However, several strong limiting signals reduce real-world priority: the attack vector is strictly local (AV:L), low privileges are required (PR:L), and SSVC marks the vulnerability as non-automatable. EPSS is 0.01% (1st percentile), indicating extremely low exploitation probability in the broader threat landscape. The vulnerability is not listed in the CISA KEV catalog, and the CVSS exploit maturity is 'Unreported' (E:U), meaning no public proof-of-concept or known exploitation activity has been observed. The combination of local-only vector, non-automatable exploitation, and absent KEV/POC signals this as a real but low-urgency issue requiring prioritization primarily for high-security or compliance-sensitive endpoint deployments where DLP integrity is critical. The gap between SSVC's 'total' technical impact and the moderate CVSS score is expected: CVSS:4.0 confines the high impact to the vulnerable component scope (SC:N/SI:N/SA:N), which caps the overall score.

Exploit ScenarioDerived

A standard user account on a corporate endpoint running Prisma Access Agent (for example, a contractor or insider threat actor) locates an unauthenticated local interface - such as a named pipe, local socket, or IPC mechanism - exposed by the Endpoint DLP component, and sends a crafted request that bypasses authorization checks to execute a privileged operation such as disabling DLP policy enforcement, exfiltrating captured DLP telemetry, or corrupting the agent's integrity. No public exploit code has been identified at the time of analysis, and exploitation is classified as non-automatable by SSVC, suggesting manual tradecraft would be required.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Jun 08, 2026

Authorization bypass in Palo Alto Networks Prisma Access Agent's Endpoint DLP component permits a locally authenticated attacker with low privileges to circumvent authentication controls and invoke privileged operations. Affected are all Prisma Access Agent versions prior to 26.2.1, with full confidentiality, integrity, and availability impact on the vulnerable component confirmed by the CVSS:4.0 vector (VC:H/VI:H/VA:H). No active exploitation has been identified - SSVC marks exploitation as 'none', EPSS sits at the 1st percentile, and the CVSS exploit maturity is rated 'Unreported' (E:U).

RemediationAI

Upgrade Prisma Access Agent to version 26.2.1 or later, which contains the vendor-released patch per EUVD-2026-30098 versioning data. The authoritative vendor advisory is at https://security.paloaltonetworks.com/CVE-2026-0247. Where immediate patching is not possible, compensating controls should focus on reducing local access exposure: restrict interactive login and local code execution rights on endpoints running Prisma Access Agent to only trusted, managed accounts (trade-off: limits troubleshooting by non-admin staff); apply application allowlisting to prevent untrusted local processes from invoking DLP component interfaces; and enable endpoint behavioral monitoring to detect unexpected privilege escalation patterns. Because exploitation requires local access (AV:L) with low privileges, hardening local user account provisioning and enforcing least-privilege endpoint configurations are effective interim mitigations.

Affected VersionsENISA

Prisma Access Agent 0 <26.2.1

Affected Packages

euvd prisma_access_agent fix: 26.2.1

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The affected product is Palo Alto Networks Prisma Access Agent (CPE: cpe:2.3:a:palo_alto_networks:prisma_access_agent:*:*:*:*:*:*:*:*), specifically its Endpoint Data Loss Prevention (DLP) component, which runs as a privileged process on managed endpoints. The root cause is classified as CWE-306 (Missing Authentication for Critical Function): one or more internal interfaces or inter-process communication channels within the Endpoint DLP subsystem fail to enforce authentication or authorization checks before executing sensitive operations. This flaw class typically arises when privileged daemons or services expose local APIs, named pipes, sockets, or COM objects without validating the caller's identity or privilege level, allowing any local user-space process to invoke operations intended only for privileged contexts. The vulnerability is multiple in nature, suggesting several distinct code paths share this deficiency.

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Severity by source

Vendor (palo_alto) PRIMARY 5.9 MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:C/RE:M/U:Amber

Primary rating from Vendor (palo_alto) · only source for this CVE.

CVSS VectorVendor: palo_alto

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
High
Vulnerable system: Availability
High
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

2
Patch available
May 13, 2026 - 20:02 EUVD
CVSS changed
May 13, 2026 - 19:22 NVD
5.9 (MEDIUM)

DescriptionCVE.org

Multiple authorization bypass vulnerabilities in the Endpoint DLP component of Prisma Access Agent® allow a local attacker to bypass authentication controls and execute privileged operations.

Threat Intelligence Overview

EPSS Score
0.0%
Top 99% exploitable
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
Medium
Technical Impact
Total

Priority Score

30
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +30
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

CVE-2026-0248 MEDIUM
6.2 May 13

Improper certificate validation in Palo Alto Networks Prisma Access Agent versions below 26.2.1 on Android and Chrome OS

CVE-2026-0294 MEDIUM
6.0 Aug 13

Privilege escalation via an uncontrolled search path (CWE-427) in Palo Alto Networks Prisma Access Agent on Windows and

CVE-2026-0271 MEDIUM
5.9 Jun 10

Privilege escalation in Palo Alto Networks Prisma Access Agent on Linux allows a locally authenticated low-privileged us

CVE-2026-0246 MEDIUM
5.9 May 13

Local privilege escalation in Palo Alto Networks Prisma Access Agent (all versions prior to 26.2.1) allows any locally a

CVE-2026-0278 MEDIUM
5.8 Jul 09

Multiple protection mechanism failures in the Data Loss Prevention (DLP) component of Palo Alto Networks Prisma Access A

CVE-2026-0306 MEDIUM
5.8 Sep 10

DLP policy enforcement bypass in Palo Alto Networks Prisma Access Agent on Windows allows a low-privileged local user to

CVE-2026-0277 MEDIUM
5.7 Jul 09

Improper certificate validation in the Palo Alto Networks Prisma Access Agent for iOS exposes VPN tunnel traffic to inte

CVE-2026-0293 MEDIUM
5.6 Aug 13

Anti-tamper protection bypass in Palo Alto Networks Prisma Access Agent on Windows allows a local administrator to gain

CVE-2026-0268 MEDIUM
4.4 Jun 10

Security control bypass in Palo Alto Networks Prisma Access Agent for Linux enables a local, low-privileged attacker to

CVE-2026-0305 MEDIUM
4.3 Sep 10

Information disclosure in the Palo Alto Networks Prisma® Access Agent on Linux allows local low-privileged users to read

CVE-2026-0245 MEDIUM
4.3 May 13

Prisma Access Agent on Windows and macOS exposes sensitive configuration data and credentials to local low-privileged us

CVE-2026-0292 LOW
2.1 Aug 13

Authentication bypass in the Windows network driver of Palo Alto Networks Prisma Access Agent allows a local administrat

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