Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-113680— HarfBuzz 8.0.0 through 14.6.0 WebAssembly Shaper NULL Pointer Dereference DoS

Quick assessment

Affected
harfbuzz harfbuzz
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.

HarfBuzz 从 8.0.0 到 14.6.0 版本中，在实验性的 WebAssembly 字形生成器（shaper）主机导入接口 、 和 中存在空指针解引用漏洞。攻击者可构造一个嵌入 WebAssembly 模块的恶意字体，该模块传递超出范围且长度非零的地址，导致任何使用该字体进行文本排版的应用程序崩溃。

CVSS 5.5 · Medium
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-113680

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
HarfBuzz 8.0.0 through 14.6.0 WebAssembly Shaper NULL Pointer Dereference DoS
Source: CVE Program / CVE List V5
Vulnerability Description
HarfBuzz from 8.0.0 through 14.6.0 contains a NULL pointer dereference vulnerability in the experimental WebAssembly shaper host imports buffer_set_contents, face_create, and font_set_coords. Attackers can supply a crafted font whose embedded wasm module passes out-of-range addresses with non-zero lengths, crashing any application that shapes text with the font.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
harfbuzz harfbuzz 8.0.0 ~ 14.6.0 -

II. Public POCs for CVE-2026-113680

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-113680

请登录查看更多情报信息。

Other References for CVE-2026-113680 (6)

IV. Related Vulnerabilities

Same product: harfbuzz
Same vendor: harfbuzz
Same weakness: CWE-476

V. Comments for CVE-2026-113680

No comments yet

Leave a comment