CVE-2026-16277— Rpcbind: rpcbind: stack buffer overflow in rpcinfo rpcbaddrlist()
Quick assessment
Affected
Red Hat Red Hat Enterprise Linux 10
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.
Red Hat Enterprise Linux 10是美国Red Hat公司的一套面向企业用户的Linux操作系统。 Red Hat Enterprise Linux 10版本、Red Hat Enterprise Linux 8版本、Red Hat Enterprise Linux 9版本和Red Hat OpenShift Container Platform 4版本存在缓冲区错误漏洞，该漏洞源于rpcbind的rpcinfo工具中存在栈缓冲区溢出，在查询远程rpcbind服务时，服务器返回的地址信
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of ServiceAffected Version Matrix 4
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | any |
affected |
| Red Hat | Red Hat Enterprise Linux 8 | any |
affected |
| Red Hat | Red Hat Enterprise Linux 9 | any |
affected |
| Red Hat | Red Hat OpenShift Container Platform 4 | any |
affected |
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I. Basic Information for CVE-2026-16277
Vulnerability Information
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Vulnerability Title
Rpcbind: rpcbind: stack buffer overflow in rpcinfo rpcbaddrlist()
Source: CVE Program / CVE List V5
Vulnerability Description
A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote rpcbind service with `rpcinfo -l`, address information returned by the server is copied into a fixed-size buffer without sufficient bounds checking. A malicious or compromised rpcbind server could use this flaw to crash the rpcinfo client, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Enterprise Linux 10 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Enterprise Linux 10是美国Red Hat公司的一套面向企业用户的Linux操作系统。 Red Hat Enterprise Linux 10版本、Red Hat Enterprise Linux 8版本、Red Hat Enterprise Linux 9版本和Red Hat OpenShift Container Platform 4版本存在缓冲区错误漏洞，该漏洞源于rpcbind的rpcinfo工具中存在栈缓冲区溢出，在查询远程rpcbind服务时，服务器返回的地址信
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 |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 | - |
cpe:/a:redhat:openshift:4
|
|
II. Public POCs for CVE-2026-16277
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2026-16277 (1)
Vendor Advisories for CVE-2026-16277 (2)
-
-
🔗 2462085 – (CVE-2026-16277) CVE-2026-16277 rpcbind: rpcbind: stack buffer overflow in rpcinfo rpcbaddrlist() Read full article issue-tracking x_refsource_REDHAT
Other References for CVE-2026-16277 (1)
Same Patch Batch · Red Hat · 2026-07-20 · 8 CVEs total
| CVE-2026-16242 | 9.4 CRITICAL | Hypershift: konnectivity proxy-server accepts agent connections without validating client |
| CVE-2026-12701 | 9.0 CRITICAL | Pulpcore: pulpcore: relative_path_validator bypass via directory traversal in filesystemex |
| CVE-2026-64612 | 7.5 HIGH | Libcupsfilters: cups-filters: libcupsfilters: cups image filter process abort via malforme |
| CVE-2026-12080 | 7.3 HIGH | Qemu-kvm: qemu-guest-agent: local privilege escalation via symlink attack in guest-ssh-add |
| CVE-2026-15813 | 6.5 MEDIUM | Kronosnet: kronosnet: memory corruption and out-of-bounds access via malformed network pac |
| CVE-2026-15588 | 5.3 MEDIUM | Gdbusserver: glib2: gdbusserver pre-authentication dos via unbounded sasl line buffering |
| CVE-2026-16254 | 4.3 MEDIUM | Claircore: claircore: denial of service via out-of-bounds slice in claircore's apk install |
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