CVE-2026-4046— iconv crash due to assertion failure with untrusted input
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-4046
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
iconv crash due to assertion failure with untrusted input
Source: NVD (National Vulnerability Database)
Vulnerability Description
The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character sets, which may be used to remotely crash an application. This vulnerability can be trivially mitigated by removing the IBM1390 and IBM1399 character sets from systems that do not need them.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
可达断言
Source: NVD (National Vulnerability Database)
Vulnerability Title
GNU C Library 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNU C Library是GNU社区的一种按照LGPL许可协议发布的开源免费的C语言编译程序。 GNU C Library 2.43及之前版本存在安全漏洞，该漏洞源于iconv函数在转换IBM1390或IBM1399字符集输入时可能因断言失败而崩溃，可能导致远程崩溃应用程序。
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 |
|---|---|---|---|---|
| The GNU C Library | glibc | 2.3.3 ~ 2.43 | - |
II. Public POCs for CVE-2026-4046
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-4046
请登录查看更多情报信息。
IV. Related Vulnerabilities
Same product: glibc
- CVE-2026-6238
Buffer overread in ns_printrrf with corrupted RDATA field - CVE-2026-5435
Potential buffer overflow in ns_sprintrrf TSIG handling path - CVE-2026-5450
scanf %mc off-by-one heap buffer overflow - CVE-2026-5928
Potential buffer under-read in ungetwc - CVE-2026-4438
gethostbyaddr and gethostbyaddr_r return invalid DNS hostnam
Same vendor: The GNU C Library
- CVE-2026-6238
Buffer overread in ns_printrrf with corrupted RDATA field - CVE-2026-5435
Potential buffer overflow in ns_sprintrrf TSIG handling path - CVE-2026-5450
scanf %mc off-by-one heap buffer overflow - CVE-2026-5928
Potential buffer under-read in ungetwc - CVE-2026-4438
gethostbyaddr and gethostbyaddr_r return invalid DNS hostnam
Same weakness: CWE-617
- CVE-2026-8257
WebAssembly Binaryen BrOn wasm-ir-builder.cpp makeBrOn asser - CVE-2026-41584
ZEBRA: rk Identity Point Panic in Transaction Verification - CVE-2026-20450
MediaTek Chipsets 安全漏洞 - CVE-2026-41485
Kyverno Controller Denial of Service via forEach Mutation Pa - CVE-2026-34067
nimiq-transaction vulnerable to panic via `HistoryTreeProof`
V. Comments for CVE-2026-4046
No comments yet