PaloAlto Networks PAN‑OS Vulnerability: CVE‑2026‑0258
✅ 1) Internal context (your environment)
- Vulnerability is classified as MEDIUM
- Risk is currently assessed as “No Impact” in your environment if there is controls in place
- Protection is available via Threat Prevention (Threat ID 510014)
👉 This aligns with your current NGFW posture (likely using Threat Prevention + non-exposed IKEv2 configs).
🧠 2) Vulnerability Details
📌 Type
- Server-Side Request Forgery (SSRF)
- CWE‑918 classification
📌 Description
- Exists in IKEv2 certificate URL fetching logic in PAN‑OS
- Allows unauthenticated attacker to:
- Force firewall to send outbound requests to arbitrary destinations
- Potentially cause Denial of Service (DoS)
👉 Key point: the firewall becomes a proxy for attacker-controlled requests.
⚠️ 3) Impact Analysis
What attacker can do
- Trigger requests from firewall to:
- Internal network endpoints (SSRF pivoting)
- External systems
- Cause:
- Internal network probing
- Resource exhaustion / DoS
What attacker CANNOT do (based on sources)
- No direct:
- RCE (Remote Code Execution)
- Privilege escalation
- Integrity impact is none, availability impact is high (DoS potential)
📊 4) Severity & Risk
| Metric | Value |
|---|---|
| CVSS (v4.0) | 4.8 (Medium) |
| Attack Vector | Network |
| Authentication | None |
| Exploit Complexity | Low |
| Exploitation status | No known active exploitation |
👉 Interpretation for you:
- Not critical like CVE‑2026‑0300 (RCE), but still important due to:
- Network exposure
- No authentication required
🎯 5) Exposure Conditions (VERY IMPORTANT)
This CVE only applies if the following is true:
- PAN‑OS has:
- Site‑to‑Site VPN gateway configured
- And uses IKEv2
👉 If IKEv2 is not in use, risk is effectively minimal.
🧩 6) Affected vs Not Affected Products
✅ Affected
- PAN‑OS firewall software:
- 10.2.x (below fixed builds)
- 11.1.x (below fixed builds)
- 11.2.x (below fixed builds)
- 12.1.x (below fixed builds)
❌ Not affected
- Prisma Access
- Cloud NGFW
👉 Important for your environment given Prisma Access usage.
🔧 7) Remediation / Fix
✅ Vendor fix (primary)
Upgrade PAN‑OS to patched builds, e.g.:
- 12.1 → 12.1.4‑h5 or 12.1.7+
- 11.2 → 11.2.10‑h6 or 11.2.12+
- 11.1 → 11.1.10‑h25 or 11.1.15+
- 10.2 → 10.2.18‑h6+
✅ Mitigation (interim / compensating controls)
From combined internal + external sources:
- Enable Threat Prevention signatures (Threat ID 510014)
- Monitor:
- IKEv2 negotiation anomalies
- Unexpected outbound traffic
- Limit exposure:
- Restrict IKEv2 VPN access to trusted peers
🧾 8) Exploitability Status
- ✅ No known exploitation in the wild
- ✅ No public PoC confirmed
👉 This is why vendor tagged it Moderate urgency.
🧠 9) Risk Summary (Practical View for You)
Low–Moderate operational risk IF:
- IKEv2 is exposed externally
- Or misconfigured VPN gateways exist
Low risk IF (your current likely posture):
- Threat Prevention enabled ✅
- Limited IKEv2 exposure ✅
- Controlled VPN architecture ✅
✅ 10) Quick Executive Summary
- SSRF in PAN‑OS IKEv2 implementation
- Unauthenticated, network‑based attack
- CVSS 4.8 (Medium)
- Impact = SSRF + potential DoS (not RCE)
- Only relevant if IKEv2 VPN is enabled
- Fix = patch or enable threat signatures
- No active exploitation currently
