CVE-2012-4988
Status: ModifiedHigh (9.3)—💥 Exploit
Heap-based buffer overflow in the xjpegls.dll (aka JLS, JPEG-LS, or JPEG lossless) format plugin in XnView 1.99 and 1.99.1 allows remote attackers to execute arbitrary code via a crafted JLS image file.
CVSS
- Version: 2.0
- Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
- Base score: 9.3
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 9.85%
- Percentile among all scored CVEs: 95
- Score date: 10/7/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
💥 Public exploits
Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.
- Published on Exploit-DB · XnView 1.99.1 - '.JLS' File Decompression Heap Overflow (10/4/2012)
Affected technologies (1)
CWEs
- CWE-119
References
- http://osvdb.org/show/osvdb/85893
- http://seclists.org/fulldisclosure/2012/Oct/36
- http://secunia.com/advisories/50825
- http://www.reactionpenetrationtesting.co.uk/xnview-jls-heap.html
- http://www.securityfocus.com/bid/55787
- https://exchange.xforce.ibmcloud.com/vulnerabilities/79030
- https://www.exploit-db.com/exploits/21741/
- http://osvdb.org/show/osvdb/85893
- http://seclists.org/fulldisclosure/2012/Oct/36
- http://secunia.com/advisories/50825
- http://www.reactionpenetrationtesting.co.uk/xnview-jls-heap.html
- http://www.securityfocus.com/bid/55787
- https://exchange.xforce.ibmcloud.com/vulnerabilities/79030
- https://www.exploit-db.com/exploits/21741/
Raw JSON (NVD)
Show
{
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},
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}
],
"lastModified": "2026-06-16T23:46:00.570",
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