CVE-2026-75883

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-75883
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75883.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-75883
Aliases
  • GHSA-rwr9-4vx8-vc35
Downstream
Related
Published
2026-09-18T15:29:07Z
Modified
2026-09-19T03:47:22Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
PPPD buffer overflow in PEAP response code
Details

The code in pppd that formats a response to a PEAP Request packet in peap_response() copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacket_buf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to a server which requests PEAP authentication can be induced to corrupt global static data following the outpacket_buf array, most likely causing incorrect behavior or a crash.

Database specific 
{
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-122"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75883.json"
}
References

Affected packages

Git / github.com/ppp-project/ppp

Affected ranges

Type
GIT
Repo
https://github.com/ppp-project/ppp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
760ce18f82670eb81cc186fb792919339a2e2fbe
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.5.0"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

2.*
2.4.9
ppp-2.*
ppp-2.0.4
ppp-2.1.1
ppp-2.1.2
ppp-2.2
ppp-2.3.0
ppp-2.3.1
ppp-2.3.10
ppp-2.3.11
ppp-2.3.2
ppp-2.3.3
ppp-2.3.4
ppp-2.3.5
ppp-2.3.6
ppp-2.3.7
ppp-2.3.8
ppp-2.3.9
ppp-2.4.0
ppp-2.4.1
ppp-2.4.2
ppp-2.4.3
ppp-2.4.4
ppp-2.4.5
ppp-2.4.6
ppp-2.4.7
ppp-2.4.8
ppp-2.4.9
ppp-2.5.0
v2.*
v2.0.4
v2.1.1
v2.1.2
v2.2
v2.3.0
v2.3.1
v2.3.10
v2.3.11
v2.3.2
v2.3.3
v2.3.4
v2.3.5
v2.3.6
v2.3.7
v2.3.8
v2.3.9
v2.4.0
v2.4.1
v2.4.2
v2.4.3
v2.4.4
v2.4.5
v2.4.6
v2.4.7
v2.4.8
v2.4.9
v2.5.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75883.json"