Skip to content
Noroxi
CVE-2016-1251· NVD / CVE Program· CNA debian

There is a vulnerability of type use-after-free affecting DBD::mysql (aka DBD-mysql or the Database Interface (DBI) MySQL driver for Perl) 3

Noroxi assessment

Priority: Monitor (action score 33/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 3.1% (FIRST EPSS); higher than 87.4% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: libdbd-mysql-perl (Debian:12) 4.041-1; perl-DBD-mysql (openSUSE:Tumbleweed) 4.041-2.1; perl-DBD-mysql (SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2) 4.021-11.1.

Low priority for now. Upgrade to libdbd-mysql-perl (Debian:12) 4.041-1; perl-DBD-mysql (openSUSE:Tumbleweed) 4.041-2.1; perl-DBD-mysql (SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2) 4.021-11.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

There is a vulnerability of type use-after-free affecting DBD::mysql (aka DBD-mysql or the Database Interface (DBI) MySQL driver for Perl) 3.x and 4.x before 4.041 when used with mysql_server_prepare=1.

HighCVSS 8.1 · v3.0—No exploit Fix available
Published
Nov 29, 2016
Updated
Jun 16, 2026
EPSS
3.1% · 87th percentile

Report tools

JSON

Action score

33

Monitor

Low priority for now.

CVSS
32 / 40 · 8.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2016-1251

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Port scanning: 5 full scans a day (members only)
  • Uptime monitoring: 1 site, instant email when it goes down
  • Verify your domain: subdomains and takeover risk scanned every week
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for dbd-mysql project records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
dbd-mysql projectdbd-mysql

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • dbd-mysql project dbd-mysql3.0000_0
  • dbd-mysql project dbd-mysql3.0001_1
  • dbd-mysql project dbd-mysql3.0001_2
  • dbd-mysql project dbd-mysql3.0001_3
  • dbd-mysql project dbd-mysql3.0002_1
  • dbd-mysql project dbd-mysql3.0002_2
  • dbd-mysql project dbd-mysql3.0002_3
  • dbd-mysql project dbd-mysql3.0002_4
  • dbd-mysql project dbd-mysql3.0002_5
  • dbd-mysql project dbd-mysql3.0003_1
  • dbd-mysql project dbd-mysql3.0004_1
  • dbd-mysql project dbd-mysql3.0005
  • dbd-mysql project dbd-mysql3.0005_1
  • dbd-mysql project dbd-mysql3.0007_2
  • dbd-mysql project dbd-mysql3.0008_1
  • dbd-mysql project dbd-mysql3.0009_1
  • dbd-mysql project dbd-mysql4.00
  • dbd-mysql project dbd-mysql4.001
  • dbd-mysql project dbd-mysql4.002
  • dbd-mysql project dbd-mysql4.003

Versions reported by the vendor

Affected version ranges reported by the assigning authority (debian). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a DBD::mysql before 4.041

    • DBD::mysql before 4.041affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12libdbd-mysql-perlbefore 4.041-14.041-1
openSUSE:Tumbleweedperl-DBD-mysqlbefore 4.041-2.14.041-2.1
SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2perl-DBD-mysqlbefore 4.021-11.14.021-11.1
SUSE:Linux Enterprise Software Development Kit 11 SP4perl-DBD-mysqlbefore 4.008-6.14.008-6.1

Same product

dbd-mysql project: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-10788The DBD::mysql module through 4.043 for Perl allows remote attackers to cause a denial of service (use-after-free and application crash) or
    40Plan
  • CVE-2015-8949Use-after-free vulnerability in the my_login function in DBD::mysql before 4.033_01 allows attackers to have unspecified impact by leveragin
    40Plan
  • CVE-2017-10789The DBD::mysql module through 4.043 for Perl uses the mysql_ssl=1 setting to mean that SSL is optional (even though this setting's documenta
    24Monitor
  • CVE-2016-1249The DBD::mysql module before 4.039 for Perl, when using server-side prepared statement support, allows attackers to cause a denial of servic
    24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:libdbd-mysql-perl4.041-1 · Debian:12Package registry (OSV)
opensuse:perl-DBD-mysql4.041-2.1 · openSUSE:TumbleweedPackage registry (OSV)
suse:perl-DBD-mysql4.008-6.1 · SUSE:Linux Enterprise Software Development Kit 11 SP4Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-416 · Use After Free

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

The bug in code

The whole CWE-416 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

c
free(dev->buf);/* ... another thread is still running ... */process(dev->buf);

Fixed

c
lock(&dev->lock);free(dev->buf);dev->buf = NULL;unlock(&dev->lock);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (5 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records