CVE-2026-22858 (CNNVD-202601-2359)
中文标题:
FreeRDP 安全漏洞
英文标题:
FreeRDP has a global-buffer-overflow in crypto_base64_decode
漏洞描述
中文描述:
FreeRDP是FreeRDP团队的一款开源的远程桌面协议(RDP)的实现。 FreeRDP 3.20.1之前版本存在安全漏洞,该漏洞源于Base64解码路径中的全局缓冲区溢出,可能导致越界访问。
英文描述:
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, global-buffer-overflow was observed in FreeRDP's Base64 decoding path. The root cause appears to be implementation-defined char signedness: on Arm/AArch64 builds, plain char is treated as unsigned, so the guard c <= 0 can be optimized into a simple c != 0 check. As a result, non-ASCII bytes (e.g., 0x80-0xFF) may bypass the intended range restriction and be used as an index into a global lookup table, causing out-of-bounds access. This vulnerability is fixed in 3.20.1.
CWE类型:
标签:
受影响产品
| 厂商 | 产品 | 版本 | 版本范围 | 平台 | CPE |
|---|---|---|---|---|---|
| FreeRDP | FreeRDP | < 3.20.1 | - | - |
cpe:2.3:a:freerdp:freerdp:<_3.20.1:*:*:*:*:*:*:*
|
解决方案
中文解决方案:
英文解决方案:
临时解决方案:
CVSS评分详情
4.0 (cna)
MEDIUMCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
时间信息
利用信息
数据源详情
| 数据源 | 记录ID | 版本 | 提取时间 |
|---|---|---|---|
| CVE | cve_CVE-2026-22858 |
2026-01-15 02:20:14 | 2026-01-15 06:00:20 |
| NVD | nvd_CVE-2026-22858 |
2026-01-15 03:00:07 | 2026-01-15 06:00:29 |
| CNNVD | cnnvd_CNNVD-202601-2359 |
2026-01-16 02:47:02 | 2026-01-16 02:48:24 |
版本与语言
安全公告
变更历史
查看详细变更
- vulnerability_type: 未提取 -> 其他
- cnnvd_id: 未提取 -> CNNVD-202601-2359
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- data_sources: ['cve'] -> ['cve', 'nvd']