Integer overflow in PuTTY 0.62 and earlier, WinSCP before 5.1.6, and other products that use PuTTY allows remote SSH servers to cause a denial of service (crash) and possibly execute arbitrary code in certain applications that use PuTTY via a negative size value in an RSA key signature during the SSH handshake, which triggers a heap-based buffer overflow.
CVE-2013-4852 is a security vulnerability that . Impacting 5 products from winscp, from debian, from opensuse and 2 others, organizations running these solutions should prioritize assessment and patching.
Documented in 2013, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.
2013-08-19T23:55:09.077
2025-04-11T00:51:21.963
Deferred
CVSSv2: 6.8 (MEDIUM)
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | winscp | winscp | ≤ 5.1.5 | Yes |
| Application | winscp | winscp | 3.7.6 | Yes |
| Application | winscp | winscp | 3.8.2 | Yes |
| Application | winscp | winscp | 3.8_beta | Yes |
| Application | winscp | winscp | 4.0.4 | Yes |
| Application | winscp | winscp | 4.0.5 | Yes |
| Application | winscp | winscp | 4.2.6 | Yes |
| Application | winscp | winscp | 4.2.7 | Yes |
| Application | winscp | winscp | 4.2.8 | Yes |
| Application | winscp | winscp | 4.2.9 | Yes |
| Application | winscp | winscp | 4.3.2 | Yes |
| Application | winscp | winscp | 4.3.4 | Yes |
| Application | winscp | winscp | 4.3.5 | Yes |
| Application | winscp | winscp | 4.3.6 | Yes |
| Application | winscp | winscp | 4.3.7 | Yes |
| Application | winscp | winscp | 4.3.8 | Yes |
| Application | winscp | winscp | 4.3.9 | Yes |
| Application | winscp | winscp | 4.4.0 | Yes |
| Application | winscp | winscp | 5.0 | Yes |
| Application | winscp | winscp | 5.0.1 | Yes |
| Application | winscp | winscp | 5.0.2 | Yes |
| Application | winscp | winscp | 5.0.3 | Yes |
| Application | winscp | winscp | 5.0.4 | Yes |
| Application | winscp | winscp | 5.0.5 | Yes |
| Application | winscp | winscp | 5.0.6 | Yes |
| Application | winscp | winscp | 5.0.7 | Yes |
| Application | winscp | winscp | 5.0.8 | Yes |
| Application | winscp | winscp | 5.0.9 | Yes |
| Application | winscp | winscp | 5.1 | Yes |
| Application | winscp | winscp | 5.1.1 | Yes |
| Application | winscp | winscp | 5.1.2 | Yes |
| Application | winscp | winscp | 5.1.3 | Yes |
| Application | winscp | winscp | 5.1.4 | Yes |
| Operating System | debian | debian_linux | 6.0 | Yes |
| Operating System | debian | debian_linux | 7.0 | Yes |
| Operating System | debian | debian_linux | 7.1 | Yes |
| Operating System | opensuse | opensuse | 12.3 | Yes |
| Application | putty | putty | 0.45 | Yes |
| Application | putty | putty | 0.46 | Yes |
| Application | putty | putty | 0.47 | Yes |
| Application | putty | putty | 0.48 | Yes |
| Application | putty | putty | 0.49 | Yes |
| Application | putty | putty | 0.50 | Yes |
| Application | putty | putty | 0.51 | Yes |
| Application | putty | putty | 0.52 | Yes |
| Application | putty | putty | 0.53b | Yes |
| Application | putty | putty | 0.54 | Yes |
| Application | putty | putty | 0.55 | Yes |
| Application | putty | putty | 0.56 | Yes |
| Application | putty | putty | 0.57 | Yes |
| Application | putty | putty | 0.58 | Yes |
| Application | putty | putty | 0.59 | Yes |
| Application | putty | putty | 0.60 | Yes |
| Application | putty | putty | 0.61 | Yes |
| Application | putty | putty | 2010-06-01 | Yes |
| Application | simon_tatham | putty | ≤ 0.62 | Yes |
| Application | simon_tatham | putty | 0.53 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For winscp's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.