CVE-2013-4788

mediumpriority · track · 34EPSS 0.114 · 96 %ileexploit · PoCEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

11.4% (96th) EPSS

CVSS 5.1 · medium

Is it mine?

32 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

The PTR_MANGLE implementation in the GNU C Library (aka glibc or libc6) 2.4, 2.17, and earlier, and Embedded GLIBC (EGLIBC) does not initialize the random value for the pointer guard, which makes it easier for context-dependent attackers to control execution flow by leveraging a buffer-overflow vulnerability in an application and using the known zero value pointer guard to calculate a pointer address.

cvss

Technical severity, 0–10. One row per scoring source.

5.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05.1mediumAV:N/AC:H/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 4.9 · impact 6.4

v2.05.1mediumAV:N/AC:H/Au:N/C:P/I:P/A:Psecondary · FSTEC (BDU) RU

v2.04.6mediumAV:N/AC:H/Au:N/C:P/I:P/A:P/E:POCsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20US

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-28657glibc and eglibc 2.5/2.7/2.13 - Local Buffer OverflowPoC · exploit_db

affected products (32)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
The GNU Project eglibc≤ .fstec_bduRU
The GNU Project glibc≤ 2.4fstec_bduRU
The GNU Project glibc≤ 2.17fstec_bduRU
gnu eglibcall versionsnvdUScpe:2.3:a:gnu:eglibc:*:*:*:*:*:*:*:*
gnu glibc≤ 2.17nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
gnu glibc= 2.0nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
gnu glibc= 2.0.1nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
gnu glibc= 2.0.2nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
gnu glibc= 2.0.3nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
gnu glibc= 2.0.4nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
gnu glibc= 2.0.5nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
gnu glibc= 2.0.6nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
gnu glibc= 2.1nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
gnu glibc= 2.1.1nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
gnu glibc= 2.1.1.6nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
gnu glibc= 2.1.2nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
gnu glibc= 2.1.3nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
gnu glibc= 2.1.9nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
gnu glibc= 2.10.1nvdUScpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*

showing 20 of 32

also known as (7)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2013-10-04modified 2026-06-16

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references (17)

External citations — patches, advisories, analysis.

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