NVD / CVE Program· CNA mitre

CVE-2021-32062: MapServer before 7.0.8, 7.1.x and 7.2.x before 7.2.3, 7.3.x and 7.4.x before 7.4.5, and 7.5.x and 7.6.x before 7.6.3 does not properly enfor

Noroxi assessment

Priority: Monitor (action score 21/100)

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: 1.5% (FIRST EPSS); higher than 74.3% 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. No special conditions are required; it is repeatable.
Fixed version: mapserver (Debian:11) 7.6.2-1+deb11u1; mapserver (Debian:12) 7.6.2-2.

Low priority for now. Upgrade to mapserver (Debian:11) 7.6.2-1+deb11u1; mapserver (Debian:12) 7.6.2-2 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

Primary sources: NVD · CVE.org · FIRST EPSS

MapServer before 7.0.8, 7.1.x and 7.2.x before 7.2.3, 7.3.x and 7.4.x before 7.4.5, and 7.5.x and 7.6.x before 7.6.3 does not properly enforce the MS_MAP_NO_PATH and MS_MAP_PATTERN restrictions that are intended to control the locations from which a mapfile may be loaded (with MapServer CGI).

MediumCVSS 5.3 · v3.1—No exploit Fix available

Published: May 6, 2021
Updated: Jun 16, 2026
EPSS: 1.5% · 74th percentile
CWE: CWE-22

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 21 / 40 · 5.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 1.5%

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

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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.

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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.

Vendor	Product	CPE
osgeo	mapserver	cpe:2.3:a:osgeo:mapserver
fedoraproject	fedora	cpe:2.3:o:fedoraproject:fedora

Affected versions

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

fedoraproject fedora33
fedoraproject fedora34
osgeo mapserverbefore 7.0.8
osgeo mapserver7.1.0 and later · before 7.2.3
osgeo mapserver7.3.0 and later · before 7.4.5
osgeo mapserver7.5.0 and later · before 7.6.3

Package-level exposure

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

Ecosystem	Package	Affected range	Fix
Debian:11	mapserver	before 7.6.2-1+deb11u1	7.6.2-1+deb11u1
Debian:12	mapserver	before 7.6.2-2	7.6.2-2

Same product

osgeo: all records

Other highest-scoring records for the same primary product.

CVE-2009-0839Stack-based buffer overflow in mapserv.c in mapserv in MapServer 4.x before 4.10.4 and 5.x before 5.2.2, when the server has a map with a lo
43Plan
CVE-2009-2281Multiple heap-based buffer underflows in the readPostBody function in cgiutil.c in mapserv in MapServer 4.x through 4.10.4 and 5.x before 5.
42Plan
CVE-2009-0841Directory traversal vulnerability in mapserv.c in mapserv in MapServer 4.x before 4.10.4 and 5.x before 5.2.2, when running on Windows with
42Plan

Published before and after this one in the same product

← EarlierCVE-2016-9839Dec 8, 2016 · In MapServer before 7.0.3, OGR driver error messages are too verbose and may leak sensitive information if data connection fails.
30Monitor
← EarlierCVE-2010-1678Oct 29, 2019 · Mapserver 5.2, 5.4 and 5.6 before 5.6.5-2 improperly validates symbol index values during Mapfile parsing.
31Monitor
Later →CVE-2025-59431Sep 19, 2025 · MapServer - WFS XML Filter Query SQL injection
35Monitor

Remediation

Which version to upgrade to

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

Product / package	Fixed version	Source
debian:mapserver	7.6.2-2 · Debian:12	Package 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.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

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

No commit or PR link among the references.

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.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: low · data or configuration can be modified
Availability: none

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: Low
Availability impact: None

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

nvd-primary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

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

Vulnerable

1const file = path.join(ROOT, req.query.name);
2res.sendFile(file);

Fixed

1const file = path.resolve(ROOT, req.query.name);
2if (!file.startsWith(ROOT + path.sep)) {
3  return res.sendStatus(400);
4}
5res.sendFile(file);

Attack context

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

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 28, 2026, 10:49 PM UTC

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References

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNORAZCJ7AIPJFUY6WGLYIA3QVPWFXFY/

Show all references (5 more)

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

All records