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CVE-2026-13705— Imager versions before 1.032 for Perl have a heap out-of-bounds read in the bundled Imager::File::SGI reader via a 16-bit RLE literal run in read_rgb_16_rle

Quick assessment

Affected
TONYC Imager
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

tonyc Imager是tonyc的嵌入式服务器。 TONYC Imager 1.032之前版本存在缓冲区错误漏洞，该漏洞源于在Imager::File::SGI读取器中，16位RLE文字运行处理时存在堆越界读取，可能导致读取特制SGI图像时触发越界读取并导致进程崩溃。

AI Predicted 5.5 Difficulty: Easy EPSS 0.18% · P6

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
TONYC Imager < 1.032 affected
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I. Basic Information for CVE-2026-13705

Vulnerability Information
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Vulnerability Title
Imager versions before 1.032 for Perl have a heap out-of-bounds read in the bundled Imager::File::SGI reader via a 16-bit RLE literal run in read_rgb_16_rle
Source: CVE Program / CVE List V5
Vulnerability Description
Imager versions before 1.032 for Perl have a heap out-of-bounds read in the bundled Imager::File::SGI reader via a 16-bit RLE literal run in read_rgb_16_rle. read_rgb_16_rle guards each literal run with if (count > data_left), but count is a pixel count while every 16-bit sample consumes two bytes. The copy loop reads inp[0] * 256 + inp[1] and advances two bytes per pixel, so a run with data_left / 2 < count <= data_left passes the guard yet consumes 2 * count bytes and reads past the end of the buffer. The 8-bit path is unaffected because there one pixel is one byte. Reading a crafted SGI image through Imager->read triggers the over-read before the parser rejects the malformed image, which can crash the process.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
TONYC Imager 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
tonyc Imager是tonyc的嵌入式服务器。 TONYC Imager 1.032之前版本存在缓冲区错误漏洞，该漏洞源于在Imager::File::SGI读取器中，16位RLE文字运行处理时存在堆越界读取，可能导致读取特制SGI图像时触发越界读取并导致进程崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
TONYC Imager 0 ~ 1.032 -

II. Public POCs for CVE-2026-13705

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III. Intelligence Information for CVE-2026-13705

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Patches & Fixes for CVE-2026-13705 (1)

IV. Related Vulnerabilities

Same product: Imager
Same vendor: TONYC
Same weakness: CWE-125

V. Comments for CVE-2026-13705

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