Security update for freerdp
This update for freerdp fixes the following issues Update to version 3.26.0: - CVE-2026-33982: heap-buffer-overflow READ vulnerability at 24 bytes before the allocation, in winpr_aligned_offset_recalloc() (bsc#1261222). - CVE-2026-33985: FreeRDP: Information disclosure via heap memory out of bounds read (bsc#1261217). - CVE-2026-33986: heap OOB write due to H.264 YUV buffer dimension desync (bsc#1261223). - CVE-2026-33987: heap OOB write due to persistent cache bmpSize desync (bsc#1261226). - CVE-2026-33995: double-free vulnerability in kerberos_AcceptSecurityContext() and kerberos_InitializeSecurityContextA() (bsc#1261227). - CVE-2026-40033: heap buffer overflow in `gdi_CacheToSurface` allows attackers to cause a denial of service or achieve remote execute code (bsc#1266317). - CVE-2026-40254: off-by-one in contains_dotdot() allows drive channel path traversal (bsc#1262743). - CVE-2026-44420: Prior to 3.26.0, a malicious RDP client can trigger a heap-buffer-overflow write in FreeRDP's server- side clipboard (cliprdr) channel (bsc#1267008). - CVE-2026-44421: Prior to 3.26.0, a malicious RDP server can trigger a heap-buffer-overflow write in the FreeRDP client by sending crafted RDPGFX PDUs (bsc#1267009). - CVE-2026-44422: Prior to 3.26.0, a malicious-server-triggerable heap use-after-free / double-free in the FreeRDP client's RDPEAR authentication-redirection path exists (bsc#1267010). - CVE-2026-45700: n attacker can bypass the check with a large nDstStep and a large nXDst, causing planar_decompress_plane_rle() to write past the end of pTempData (bsc#1267011). Changes: * cmake: Findyuv: Use correct pkgconfig name (#12666) * Remove deallocator attribute from rfx_message_free (#12681) * [winpr,utils] improve winpr/ntlm.h (#12677) * rdpecam-v4l: stop the capture thread when streaming is cleared (#12690) * fix(winpr,ncrypt): support PIV retired key slots for smartcard logon (#12684) * [core,instance] fix deprecation guards (#12691) * [ci,alt-arch] enable internal MD4, MD5 and RC4 (#12692) * Add VideoToolbox H.264 support for ffmpeg (#12694) * [client,common] add /args-from:file: syntax (#12697) * [ci,freebsd] update freebsd builds (#12698, #12700, #12701, #12702) * [client, android] UI modernization, SQLCipher and more (#12685, #12686, #12687, #12730, * #12731, #12736, #12737, #12688) * [cmake,deps] use alias target for sso-mib (#12706) * [core,settings] add auto reconnect triggered flag (#12709) * Force YUV420P when videotoolbox is used (#12711) * Release cleanups (#12712) * [gdi,gfx] fix bounds checks and proxy unit tests (#12713) * Improved input checks (#12714) * [winpr,utils] add unit tests for command line parser (#12716) * Cmdline fixes (#12717) * [codec,planar] fix bounds checks (#12718) * [client,common] add freerdp_client_settings_parse_command_line_argume... (#12724) * [winpr,sspi] clean up ntlm code (#12732) * Experimental AV1 support has been added. This currently works only with FreeRDP based servers. * Most notably there is now support for [MS-RDPEWA] (FIDO2 redirection) * Android client received a (small) facelift * Improved SDL3 client drawing performance * Console output support for SDL3 (windows) and windows native client * RDP proxy now supports NSCodec and RFX modes. * RDP PRoxy now has smartcard emulation and SAM file support (via config file) * Smartcard KSP support for NLA authentication * [winpr,wlog] add WLog_SetGlobalPrefix (#12497) * [channels,video] fix wrong cast (#12511) * [codec,openh264] reject encoder ABI mismatch on runtime-loaded library (#12510) * [client,sdl] create a copy of rdpPointer (#12512) * [codec,video] properly pass intermediate format (#12518) * [utils, signal] lazily initialize Windows CRITICAL_SECTION to match POSIX static mutex behavior (#12520) * winpr: improve libunwind backtraces (#12530) * [server,shadow] remember selected caps (#12528) * Zero credential data before free in NLA and NTLM context (#12532) * [server,proxy] ignore missing client in input channel (#12536) * [server,proxy] ignore rdpdr messages (#12537) * [winpr,sspi] improve kerberos logging (#12538) * Codec fixes (#12542) * [winpr,sspi] Fix context nullptr handling (#12543) * Dev 3.24.3 dev0 (#12545) * Fix memory leak in gdi_create_bitmap() on gdi_CreateBitmap failure (libfreerdp/gdi/graphics.c) (#12547) * Fix memory leak in vgids_read_do_fkt() on Stream_New failure (libfreerdp/emu/scard/smartcard_virtual_gids.c) (#12548) * Proxy config improve (#12549) * Proxy config improve (#12550) * [client,sdl] clamp cursor hotspot (#12553) * RFC: Research/av1 codec extension (#12527) * [winpr,kerberos] fix krb_log_context_encryption (#12555) * [client,sdl] fix global init return check (#12558) * Fix remote credential with windows11h2 (#12560) * Proxy scard auth improvements (#12561) * [winpr,sspi] guard krb5_get_etype_info (#12562) * [utils,smartcard] fix STATUS_BUFFER_TOO_SMALL (#12564) * [client,common] do not manipulate secur
Security update for freerdp
Description
This update for freerdp fixes the following issues Update to version 3.26.0: - CVE-2026-33982: heap-buffer-overflow READ vulnerability at 24 bytes before the allocation, in winpr_aligned_offset_recalloc() (bsc#1261222). - CVE-2026-33985: FreeRDP: Information disclosure via heap memory out of bounds read (bsc#1261217). - CVE-2026-33986: heap OOB write due to H.264 YUV buffer dimension desync (bsc#1261223). - CVE-2026-33987: heap OOB write due to persistent cache bmpSize desync (bsc#1261226). - CVE-2026-33995: double-free vulnerability in kerberos_AcceptSecurityContext() and kerberos_InitializeSecurityContextA() (bsc#1261227). - CVE-2026-40033: heap buffer overflow in `gdi_CacheToSurface` allows attackers to cause a denial of service or achieve remote execute code (bsc#1266317). - CVE-2026-40254: off-by-one in contains_dotdot() allows drive channel path traversal (bsc#1262743). - CVE-2026-44420: Prior to 3.26.0, a malicious RDP client can trigger a heap-buffer-overflow write in FreeRDP's server- side clipboard (cliprdr) channel (bsc#1267008). - CVE-2026-44421: Prior to 3.26.0, a malicious RDP server can trigger a heap-buffer-overflow write in the FreeRDP client by sending crafted RDPGFX PDUs (bsc#1267009). - CVE-2026-44422: Prior to 3.26.0, a malicious-server-triggerable heap use-after-free / double-free in the FreeRDP client's RDPEAR authentication-redirection path exists (bsc#1267010). - CVE-2026-45700: n attacker can bypass the check with a large nDstStep and a large nXDst, causing planar_decompress_plane_rle() to write past the end of pTempData (bsc#1267011). Changes: * cmake: Findyuv: Use correct pkgconfig name (#12666) * Remove deallocator attribute from rfx_message_free (#12681) * [winpr,utils] improve winpr/ntlm.h (#12677) * rdpecam-v4l: stop the capture thread when streaming is cleared (#12690) * fix(winpr,ncrypt): support PIV retired key slots for smartcard logon (#12684) * [core,instance] fix deprecation guards (#12691) * [ci,alt-arch] enable internal MD4, MD5 and RC4 (#12692) * Add VideoToolbox H.264 support for ffmpeg (#12694) * [client,common] add /args-from:file: syntax (#12697) * [ci,freebsd] update freebsd builds (#12698, #12700, #12701, #12702) * [client, android] UI modernization, SQLCipher and more (#12685, #12686, #12687, #12730, * #12731, #12736, #12737, #12688) * [cmake,deps] use alias target for sso-mib (#12706) * [core,settings] add auto reconnect triggered flag (#12709) * Force YUV420P when videotoolbox is used (#12711) * Release cleanups (#12712) * [gdi,gfx] fix bounds checks and proxy unit tests (#12713) * Improved input checks (#12714) * [winpr,utils] add unit tests for command line parser (#12716) * Cmdline fixes (#12717) * [codec,planar] fix bounds checks (#12718) * [client,common] add freerdp_client_settings_parse_command_line_argume... (#12724) * [winpr,sspi] clean up ntlm code (#12732) * Experimental AV1 support has been added. This currently works only with FreeRDP based servers. * Most notably there is now support for [MS-RDPEWA] (FIDO2 redirection) * Android client received a (small) facelift * Improved SDL3 client drawing performance * Console output support for SDL3 (windows) and windows native client * RDP proxy now supports NSCodec and RFX modes. * RDP PRoxy now has smartcard emulation and SAM file support (via config file) * Smartcard KSP support for NLA authentication * [winpr,wlog] add WLog_SetGlobalPrefix (#12497) * [channels,video] fix wrong cast (#12511) * [codec,openh264] reject encoder ABI mismatch on runtime-loaded library (#12510) * [client,sdl] create a copy of rdpPointer (#12512) * [codec,video] properly pass intermediate format (#12518) * [utils, signal] lazily initialize Windows CRITICAL_SECTION to match POSIX static mutex behavior (#12520) * winpr: improve libunwind backtraces (#12530) * [server,shadow] remember selected caps (#12528) * Zero credential data before free in NLA and NTLM context (#12532) * [server,proxy] ignore missing client in input channel (#12536) * [server,proxy] ignore rdpdr messages (#12537) * [winpr,sspi] improve kerberos logging (#12538) * Codec fixes (#12542) * [winpr,sspi] Fix context nullptr handling (#12543) * Dev 3.24.3 dev0 (#12545) * Fix memory leak in gdi_create_bitmap() on gdi_CreateBitmap failure (libfreerdp/gdi/graphics.c) (#12547) * Fix memory leak in vgids_read_do_fkt() on Stream_New failure (libfreerdp/emu/scard/smartcard_virtual_gids.c) (#12548) * Proxy config improve (#12549) * Proxy config improve (#12550) * [client,sdl] clamp cursor hotspot (#12553) * RFC: Research/av1 codec extension (#12527) * [winpr,kerberos] fix krb_log_context_encryption (#12555) * [client,sdl] fix global init return check (#12558) * Fix remote credential with windows11h2 (#12560) * Proxy scard auth improvements (#12561) * [winpr,sspi] guard krb5_get_etype_info (#12562) * [utils,smartcard] fix STATUS_BUFFER_TOO_SMALL (#12564) * [client,common] do not manipulate secur
Affected software
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- SUSE Product Security Team
- Advisory Id
- openSUSE-SU-2026:21116-1
- Cve Count
- 11
- Additional Cves
- ["CVE-2026-33985","CVE-2026-33986","CVE-2026-33987","CVE-2026-33995","CVE-2026-40033","CVE-2026-40254","CVE-2026-44420","CVE-2026-44421","CVE-2026-44422","CVE-2026-45700"]
Threat ID: 6aab497655bf5e2cf5990e36
Added to database: 09/17/2026, 01:59:18 UTC
Last updated: 09/17/2026, 02:02:24 UTC
Views: 1
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