The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input sequences in IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 encodings, fails to advance the input state, which could lead to an infinite loop in applications, resulting in a denial of service, a different vulnerability from CVE-2016-10228.
An official patch is available. Apply the patch as soon as possible.
CVSS v4.0 Metrics
Exploitability
Attack VectorLocal
ComplexityLow
RequirementsPresent
PrivilegesLow
User InteractionNone
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityNone
IntegrityNone
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Patch StatusOfficial Patch
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | PoC | E: U→P | 1.9 → 4.7 |
| 2026-07-21 | nvd | patch: Unavailable→Official Patch | 1.9 → 1.9 |
| 2026-07-21 | cve.org | initial, patch: Unavailable | 1.9 |
Affected Software
| Vendor | Product | Version |
|---|
| debian | debian_linux | 10.0 |
| gnu | glibc | ≤ 2.32 |
| netapp | 500f_firmware | All versions |
| netapp | a250_firmware | All versions |
| netapp | h300e_firmware | All versions |
| netapp | h300s_firmware | All versions |
| netapp | h410c_firmware | All versions |
| netapp | h410s_firmware | All versions |
| netapp | h500e_firmware | All versions |
| netapp | h500s_firmware | All versions |
| netapp | h700e_firmware | All versions |
| netapp | h700s_firmware | All versions |
| netapp | ontap_select_deploy_administration_utility | All versions |
| oracle | communications_cloud_native_core_service_communication_proxy | 1.14.0 |
Published: 2021-02-26
