PatchSiren cyber security CVE debrief
CVE-2018-25377 SocuSoft CVE debrief
CVE-2018-25377 documents a buffer overflow vulnerability in Flash Slideshow Maker Professional 5.20, specifically within the software's registration dialog. The flaw arises from improper handling of user-supplied input in the Name and Code fields of the Help > Register dialog, enabling structured exception handling (SEH) exploitation. A local attacker can achieve arbitrary code execution with system-level privileges by supplying a crafted payload. The vulnerability is classified as CWE-120 (Classic Buffer Overflow) and carries a CVSS 4.0 score of 8.6 (HIGH severity). The attack vector is local (AV:L) with low attack complexity (AC:L), requiring no privileges (PR:N) and no user interaction (UI:N), resulting in high impact to confidentiality, integrity, and availability (VC:H/VI:H/VA:H). The CVE was published on 2026-05-25 and modified on 2026-05-26. The vendor attribution remains uncertain, with low-confidence evidence suggesting a possible association with 'Dvd Photo Slideshow' based on reference domain analysis. No known exploitation in ransomware campaigns has been documented, and the vulnerability is not listed in CISA's Known Exploited Vulnerabilities (KEV) catalog.
- Vendor
- SocuSoft
- Product
- Flash Slideshow Maker Professional
- CVSS
- HIGH 8.6
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-25
- Original CVE updated
- 2026-05-26
- Advisory published
- 2026-05-25
- Advisory updated
- 2026-05-26
Who should care
System administrators managing legacy Windows environments, security teams responsible for endpoint protection, and organizations with users of multimedia slideshow software should prioritize assessment and remediation. The vulnerability poses particular risk in shared workstation environments or where standard users require administrative access for legitimate purposes.
Technical summary
Flash Slideshow Maker Professional 5.20 fails to properly validate input length in its registration dialog, resulting in a stack-based buffer overflow. The vulnerability is exploitable through the Name and Code fields in Help > Register, where oversized input overwrites the SEH chain. Successful exploitation yields arbitrary code execution with SYSTEM privileges. The vulnerability requires local access but no user interaction or privileges, making it attractive for privilege escalation in post-compromise scenarios. No patch is currently confirmed available.
Defensive priority
HIGH
Recommended defensive actions
- Remove or disable Flash Slideshow Maker Professional 5.20 from all endpoints due to unpatched buffer overflow vulnerability enabling local privilege escalation
- Block execution of Flash Slideshow Maker Professional binaries via application control policies where removal is not immediately feasible
- Monitor for anomalous process creation events originating from Flash Slideshow Maker Professional with elevated privileges or unexpected network connections
- Review endpoint logs for suspicious clipboard activity or paste operations into application dialog boxes that may indicate exploitation attempts
- Implement principle of least privilege to limit impact of local privilege escalation vulnerabilities
- Contact software vendor or distributor at DVD Photo Slideshow domain for patch availability and security update status
- Consider memory protection mechanisms such as SEHOP (Structured Exception Handler Overwrite Protection) to mitigate SEH-based exploitation techniques
Evidence notes
The vulnerability description and technical details are sourced from NVD metadata and VulnCheck advisory. Vendor attribution is marked as low confidence due to reliance on reference domain inference rather than explicit vendor confirmation. The CVSS vector and CWE classification are drawn from official NVD records.
Official resources
The vulnerability was disclosed via VulnCheck and is documented in Exploit-DB. The NVD entry reflects a 'Deferred' status, indicating potential delays in analysis or vendor coordination.