A stack-based Buffer Overflow Vulnerability exists in the web server in Pulse Secure…
Priority MEDIUM 48CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
A stack-based Buffer Overflow Vulnerability exists in the web server in Pulse Secure Pulse Connect Secure (PCS) before 8.3R4 and Pulse Policy Secure (PPS) before 5.4R4, leading to memory corruption and possibly remote code execution.
Why it matters now
EPSS 0.03061 87th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:pulsesecure:pulse_connect_secure:*:*:*:*:*:*:*:* | 8.3r1 – 8.3r3 | Vulnerable | Pulse Secure |
| cpe:2.3:a:pulsesecure:pulse_policy_secure:*:*:*:*:*:*:*:* | 5.4r1 – 5.4r3 | Vulnerable | Pulse Secure |
- cpe:2.3:a:pulsesecure:pulse_connect_secure:*:*:*:*:*:*:*:* Versions 8.3r1 – 8.3r3 Vulnerable ·Pulse Secure
- cpe:2.3:a:pulsesecure:pulse_policy_secure:*:*:*:*:*:*:*:* Versions 5.4r1 – 5.4r3 Vulnerable ·Pulse Secure
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-5299
- 2026-10-03 Alias added: GHSA-5hg9-5xp3-rm7g
References
More Pulse Secure Pulse Connect Secure vulnerabilities
- TI-2021-05761 Code injection in Pulse Secure Secure KEVCVSS 3.1HIGH 7.2
- TI-2021-05769 Buffer overflow in Pulse Connect Secure CVSS 3.1HIGH 8.8
- TI-2019-08624 In Pulse Secure Pulse Connect Secure version 9.0RX before 9.0R3.4, 8.3RX before 8.3R7.1… CVSS 3.1HIGH 7.2
- TI-2020-06674 XML external entity injection in Pulse Connect Secure CVSS 3.1MEDIUM 4.9
- TI-2022-06197 Pulse Secure version 9.115 and below may be susceptible to client-side http request… CVSS 3.1MEDIUM 5.4
- TI-2018-12918 Artifex Ghostscript 9.25 and earlier allows attackers to bypass a sandbox protection… CVSS 3.0HIGH 8.6
Sources
- CVE-2018-5299 · CVE Program
- CVE-2018-5299 · NVD
- FIRST EPSS
- GHSA-5hg9-5xp3-rm7g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences