CVE-2026-93337

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-93337
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93337.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-93337
Aliases
  • GHSA-rp84-8h2r-5xc3
Downstream
Published
2026-09-17T19:17:14Z
Modified
2026-09-25T08:09:05Z
Severity
  • 8.5 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
NetworkManager-l2tp Privilege Escalation via pppd Plugin Injection
Details

NetworkManager-l2tp through 1.52.4, fixed in 1.52.6, contains an improper input validation vulnerability that allows local users with VPN connection creation permissions to inject arbitrary pppd directives by supplying mru or mtu property values containing trailing non-numeric content after a valid integer. Attackers can exploit the verbatim write of unvalidated strings into the pppd options file via write_config_option() to inject the plugin directive, causing the privileged pppd process to load an attacker-controlled shared object and achieve arbitrary code execution as root.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-88"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93337.json"
}
References

Affected packages

Git / github.com/nm-l2tp/networkmanager-l2tp

Affected ranges

Type
GIT
Repo
https://github.com/nm-l2tp/networkmanager-l2tp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ef970e2f3bf3e219d99c949b7a91a6bb55ab6ef7
Fixed
64879ce0ad866f7c9a45babe4d95731a916ea00f
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "NetworkManager-l2tp"
        },
        {
            "fixed": "1.52.4"
        }
    ],
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.1
0.2
0.3.0
0.3.1
0.3.2
0.3.3
0.9.4
0.9.6
0.9.8
0.9.8.4
0.9.8.5
0.9.8.6
0.9.8.7
1.*
1.2.4
1.2.6
1.2.8
1.20.0
1.20.10
1.20.12
1.20.14
1.20.16
1.20.18
1.20.2
1.20.20
1.20.22
1.20.4
1.20.6
1.20.8
1.52.0
1.52.2
1.52.4
1.8.0
1.8.2
1.8.4
1.8.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93337.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "158070648708110775060651381799525606711",
            "length": 225
        },
        "id": "CVE-2026-93337-be234b68",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/nm-l2tp/networkmanager-l2tp/commit/64879ce0ad866f7c9a45babe4d95731a916ea00f",
        "target": {
            "file": "src/nm-l2tp-service.c",
            "function": "str_to_int"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "88576596244034777965365786308628445369",
                "222794914468148033287007206708652243983",
                "3375673048240140958042892392075935781",
                "2057086684029523135674331093924308713",
                "71768413811809419692601836796589747449",
                "252136989516238278999674771850799073141",
                "277779939967772749317377780942991504296",
                "319845917252403729171560224152411687498",
                "258992435164776269446931223689317742243",
                "122006297347136451589395573509347081141",
                "129312901362782005781301822372212109375",
                "93225613653476401106777317529187229335",
                "269190669162260223860276671530454508742",
                "21777572160292588238423121024282551179",
                "76217385341709580320221994010059552573",
                "77589905350073710985157106038070733699",
                "280767133410176888202921938800121982936",
                "308571317920992278848009942858578797018",
                "215053253012170737855230004272713822831",
                "230303391848834965859191760499410305321",
                "17358272201497516019063701022585751370",
                "228680576894538956050740459258651831013",
                "12493861231383247053951955982193912121",
                "331917442022521418081603961899604420088",
                "287283237184389566898590397897190340826",
                "221905683575331721988650274577843766691",
                "246445919953436273677848417992052672521",
                "7474268738259867775601411974353342394",
                "132200570637781940953032689965302200374",
                "200997345399021511086491805284280340623",
                "246265156729545062316808100640844052836",
                "284961232189473733650507166129060469073",
                "321614807505927395992992520309024156631",
                "2763403511650263188814362734008696495",
                "270492752136142555908642815399812988060",
                "139062265993365957563013001017451798214",
                "215830819104774924147063859056701504959",
                "154166761930876183646326864875036077604",
                "118983756450395647218605356578074643275",
                "294508775547772537378867448993624253946",
                "185359777331184253099116205775646669543",
                "119194594755363902798139570378149158271",
                "211704245790341342248987856916259266505",
                "128379171496300816866572043725017776545",
                "208827125267542506935498832248119865734",
                "168774731783959650019471320682419053537",
                "134068371750707192910587693292252251654",
                "325646711481016027808742090787520566370",
                "170407242714665731270558831183127372424",
                "33365529137005411634572612365691175253",
                "239880796733274023884175441000579993095",
                "298178364149211301445719312776720169501",
                "310206864650214802685885996185582600258",
                "277403456127429021892411733615701743964",
                "153039431171392553744031648597706639700",
                "17731779152617911193400010591272039923",
                "332320628625897753223802096250036936829",
                "266259600906439028162719131042228907508",
                "141647931379005708852783448748605055418",
                "290837659089900111199512583243868313640",
                "230201214787914887287145256355961440276",
                "265617279281883964104099093581974258917",
                "283259209049512383583469728978408230685",
                "181512734600014488466817592617858359731",
                "23468187739622548552684074744231723355",
                "98066061136659402913801902255220173124",
                "112185424058903154430119351391474188777",
                "150638756844590360147867359653727934851",
                "297484481749379490007108726269789379319",
                "75531325916518225824407281516435146498",
                "199622357278658554879311273936902825880",
                "28451044702405063459322450066820588750",
                "158794382610299385810808435632218242809",
                "19198981259970699424382176563069300224",
                "145674638304520994897126347915684029210",
                "184220164620893055929371178678741426491",
                "218472624365534763922961730485740172262",
                "113433474495476669792893932888506933828",
                "158050779690385845645325876983972684488",
                "188440591477291845061300799160272912892",
                "28258881045188865670720563256685159502",
                "129848585633921103132494250509082627192",
                "70318456870821299520735316957792446256",
                "301536232278809607752370485913339519365",
                "48890758206463532040039536010699552802",
                "213232300605283941233239201648490719534",
                "293306432339570183543523572882651151988",
                "223918231701712694024111744203125273476",
                "208842303445288509976109847580400837926",
                "237060021350822157256983709912269359303",
                "199729985324246468023125829081378047998",
                "88234473034079227780745649120721285549",
                "102038079927040729957584482825699745372",
                "31185902863673574834202700263097427855",
                "221330254072699398579995720724218302301",
                "193092387070510356332882078721330307056",
                "240359749473140238056810582993389968850"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-93337-c04f2cef",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/nm-l2tp/networkmanager-l2tp/commit/64879ce0ad866f7c9a45babe4d95731a916ea00f",
        "target": {
            "file": "src/nm-l2tp-service.c"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "166118388871194589147010906102085479610",
            "length": 21289
        },
        "id": "CVE-2026-93337-c5399d7c",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/nm-l2tp/networkmanager-l2tp/commit/64879ce0ad866f7c9a45babe4d95731a916ea00f",
        "target": {
            "file": "src/nm-l2tp-service.c",
            "function": "nm_l2tp_config_write"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "228955528468945058245971297174993200457",
            "length": 1776
        },
        "id": "CVE-2026-93337-e1dda870",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/nm-l2tp/networkmanager-l2tp/commit/64879ce0ad866f7c9a45babe4d95731a916ea00f",
        "target": {
            "file": "src/nm-l2tp-service.c",
            "function": "validate_one_property"
        }
    }
]
vanir_signatures_modified 
"2026-09-25T08:09:05Z"