CVE-2026-26955
中文标题:
（暂无数据）
英文标题:
FreeRDP has Out-of-bounds Write
漏洞描述
中文描述:
（暂无数据）
英文描述:
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a malicious RDP server can trigger a heap buffer overflow in FreeRDP clients using the GDI surface pipeline (e.g., `xfreerdp`) by sending an RDPGFX ClearCodec surface command with an out-of-bounds destination rectangle. The `gdi_SurfaceCommand_ClearCodec()` handler does not call `is_within_surface()` to validate the command rectangle against the destination surface dimensions, allowing attacker-controlled `cmd->left`/`cmd->top` (and subcodec rectangle offsets) to reach image copy routines that write into `surface->data` without bounds enforcement. The OOB write corrupts an adjacent `gdiGfxSurface` struct's `codecs*` pointer with attacker-controlled pixel data, and corruption of `codecs*` is sufficient to reach an indirect function pointer call (`NSC_CONTEXT.decode` at `nsc.c:500`) on a subsequent codec command — full instruction pointer (RIP) control demonstrated in exploitability harness. Users should upgrade to version 3.23.0 to receive a patch.
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 | < 3.23.0 | - | - |
cpe:2.3:a:freerdp:freerdp:<_3.23.0:*:*:*:*:*:*:*
|
| freerdp | freerdp | * | - | - |
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
|
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
3.1 (cna)
HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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-2026-26955 |
2026-02-26 03:19:56 | 2026-02-25 22:00:01 |
| NVD | nvd_CVE-2026-26955 |
2026-02-26 02:00:04 | 2026-02-25 22:00:04 |
版本与语言
安全公告
变更历史
查看详细变更
- affected_products_count: 1 -> 2
查看详细变更
- data_sources: ['cve'] -> ['cve', 'nvd']