CVE-2016-0821
Status: ModifiedMedium (5.5)—
Severity5.5Medium · CVSS 3.1
Exploitation probability0.38 %higher than 30% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found
The LIST_POISON feature in include/linux/poison.h in the Linux kernel before 4.3, as used in Android 6.0.1 before 2016-03-01, does not properly consider the relationship to the mmap_min_addr value, which makes it easier for attackers to bypass a poison-pointer protection mechanism by triggering the use of an uninitialized list entry, aka Android internal bug 26186802, a different vulnerability than CVE-2015-3636.
CVSS
- Base score
- 5.5
- Version
- 3.1
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days
- 0.38 %
- Percentile among all scored CVEs
- 30
- Score date
- 10/24/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (2)
CWEs
- CWE-908
References
Show 30 references
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8a5e5e02fc83aaf67053ab53b359af08c6c49aaf
- http://source.android.com/security/bulletin/2016-03-01.html
- http://www.debian.org/security/2016/dsa-3607
- http://www.openwall.com/lists/oss-security/2015/05/02/6
- http://www.securityfocus.com/bid/84260
- http://www.ubuntu.com/usn/USN-2967-1
- http://www.ubuntu.com/usn/USN-2967-2
- http://www.ubuntu.com/usn/USN-2968-1
- http://www.ubuntu.com/usn/USN-2968-2
- http://www.ubuntu.com/usn/USN-2969-1
- http://www.ubuntu.com/usn/USN-2970-1
- http://www.ubuntu.com/usn/USN-2971-1
- http://www.ubuntu.com/usn/USN-2971-2
- http://www.ubuntu.com/usn/USN-2971-3
- https://github.com/torvalds/linux/commit/8a5e5e02fc83aaf67053ab53b359af08c6c49aaf
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8a5e5e02fc83aaf67053ab53b359af08c6c49aaf
- http://source.android.com/security/bulletin/2016-03-01.html
- http://www.debian.org/security/2016/dsa-3607
- http://www.openwall.com/lists/oss-security/2015/05/02/6
- http://www.securityfocus.com/bid/84260
- http://www.ubuntu.com/usn/USN-2967-1
- http://www.ubuntu.com/usn/USN-2967-2
- http://www.ubuntu.com/usn/USN-2968-1
- http://www.ubuntu.com/usn/USN-2968-2
- http://www.ubuntu.com/usn/USN-2969-1
- http://www.ubuntu.com/usn/USN-2970-1
- http://www.ubuntu.com/usn/USN-2971-1
- http://www.ubuntu.com/usn/USN-2971-2
- http://www.ubuntu.com/usn/USN-2971-3
- https://github.com/torvalds/linux/commit/8a5e5e02fc83aaf67053ab53b359af08c6c49aaf
Raw JSON (NVD)
Show
{
"id": "CVE-2016-0821",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 2.1,
"accessVector": "LOCAL",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "LOW",
"availabilityImpact": "NONE",
"confidentialityImpact": "NONE"
},
"acInsufInfo": true,
"impactScore": 2.9,
"baseSeverity": "LOW",
"obtainAllPrivilege": false,
"exploitabilityScore": 3.9,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "security@android.com",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2016-03-12T21:59:05.900",
"references": [
{
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8a5e5e02fc83aaf67053ab53b359af08c6c49aaf",
"tags": [
"Issue Tracking",
"Patch",
"Vendor Advisory"
],
"source": "security@android.com"
},
{
"url": "http://source.android.com/security/bulletin/2016-03-01.html",
"tags": [
"Third Party Advisory"
],
"source": "security@android.com"
},
{
"url": "http://www.debian.org/security/2016/dsa-3607",
"tags": [
"Third Party Advisory"
],
"source": "security@android.com"
},
{
"url": "http://www.openwall.com/lists/oss-security/2015/05/02/6",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "security@android.com"
},
{
"url": "http://www.securityfocus.com/bid/84260",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "security@android.com"
},
{
"url": "http://www.ubuntu.com/usn/USN-2967-1",
"tags": [
"Third Party Advisory"
],
"source": "security@android.com"
},
{
"url": "http://www.ubuntu.com/usn/USN-2967-2",
"tags": [
"Third Party Advisory"
],
"source": "security@android.com"
},
{
"url": "http://www.ubuntu.com/usn/USN-2968-1",
"tags": [
"Third Party Advisory"
],
"source": "security@android.com"
},
{
"url": "http://www.ubuntu.com/usn/USN-2968-2",
"tags": [
"Third Party Advisory"
],
"source": "security@android.com"
},
{
"url": "http://www.ubuntu.com/usn/USN-2969-1",
"tags": [
"Third Party Advisory"
],
"source": "security@android.com"
},
{
"url": "http://www.ubuntu.com/usn/USN-2970-1",
"tags": [
"Third Party Advisory"
],
"source": "security@android.com"
},
{
"url": "http://www.ubuntu.com/usn/USN-2971-1",
"tags": [
"Third Party Advisory"
],
"source": "security@android.com"
},
{
"url": "http://www.ubuntu.com/usn/USN-2971-2",
"tags": [
"Third Party Advisory"
],
"source": "security@android.com"
},
{
"url": "http://www.ubuntu.com/usn/USN-2971-3",
"tags": [
"Third Party Advisory"
],
"source": "security@android.com"
},
{
"url": "https://github.com/torvalds/linux/commit/8a5e5e02fc83aaf67053ab53b359af08c6c49aaf",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"source": "security@android.com"
},
{
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8a5e5e02fc83aaf67053ab53b359af08c6c49aaf",
"tags": [
"Issue Tracking",
"Patch",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://source.android.com/security/bulletin/2016-03-01.html",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.debian.org/security/2016/dsa-3607",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.openwall.com/lists/oss-security/2015/05/02/6",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.securityfocus.com/bid/84260",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.ubuntu.com/usn/USN-2967-1",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.ubuntu.com/usn/USN-2967-2",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.ubuntu.com/usn/USN-2968-1",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.ubuntu.com/usn/USN-2968-2",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.ubuntu.com/usn/USN-2969-1",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.ubuntu.com/usn/USN-2970-1",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.ubuntu.com/usn/USN-2971-1",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.ubuntu.com/usn/USN-2971-2",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.ubuntu.com/usn/USN-2971-3",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://github.com/torvalds/linux/commit/8a5e5e02fc83aaf67053ab53b359af08c6c49aaf",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-908"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The LIST_POISON feature in include/linux/poison.h in the Linux kernel before 4.3, as used in Android 6.0.1 before 2016-03-01, does not properly consider the relationship to the mmap_min_addr value, which makes it easier for attackers to bypass a poison-pointer protection mechanism by triggering the use of an uninitialized list entry, aka Android internal bug 26186802, a different vulnerability than CVE-2015-3636."
},
{
"lang": "es",
"value": "La funcionalidad LIST_POISON en include/linux/poison.h en el kernel de Linux en versiones anteriores a 4.3, como se utiliza en Android 6.0.1 en versiones anteriores a 2016-03-01, no considera adecuadamente la relación del valor mmap_min_addr, lo que hace más fácil a atacantes eludir un mecanismo de protección poison-pointer desencadenando el uso de una entrada de lista no inicializada, también conocido como error interno de Android 26186802, una vulnerabilidad diferente a CVE-2015-3636."
}
],
"lastModified": "2026-06-17T00:38:17.920",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "24716AE4-6BBB-4E20-B9CC-8D2D43014BBD",
"versionEndExcluding": "4.3"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:google:android:6.0.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "691FA41B-C2CE-413F-ABB1-0B22CB322807"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security@android.com"
}