CVE-2023-28487: Sudo before 1.9.13 does not escape control characters in sudoreplay output.
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: 0.95% (FIRST EPSS); higher than 61.3% 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: CBL Mariner 1.0 ARM 1.9.13p3-1; CBL Mariner 1.0 x64 1.9.13p3-1.
Low priority for now. Upgrade to CBL Mariner 1.0 ARM 1.9.13p3-1; CBL Mariner 1.0 x64 1.9.13p3-1 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
Primary sources: NVD · CVE.org · FIRST EPSS
- Published
- Mar 15, 2023
- Updated
- Jun 17, 2026
- EPSS
- 0.9% · 61th percentile
- CWE
- CWE-116
Report tools
Action score
21
Monitor
Low priority for now.
- CVSS
- 21 / 40 · 5.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.9%
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.
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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.
We use this product, ask for helpAffected 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 |
|---|---|---|
| sudo project | sudo | cpe:2.3:a:sudo_project:sudo |
| netapp | active iq unified manager | cpe:2.3:a:netapp:active_iq_unified_manager |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- netapp active iq unified managerall versions
- sudo project sudobefore 1.9.13
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:9 | sudo | before 1.9.5p2-10.el9_3 | 1.9.5p2-10.el9_3 |
| AlmaLinux:9 | sudo-python-plugin | before 1.9.5p2-10.el9_3 | 1.9.5p2-10.el9_3 |
| Debian:10 | sudo | before 1.8.27-1+deb10u6 | 1.8.27-1+deb10u6 |
| Debian:11 | sudo | before 1.9.5p2-3+deb11u3 | 1.9.5p2-3+deb11u3 |
| Debian:12 | sudo | before 1.9.13p1-1 | 1.9.13p1-1 |
| openSUSE:Leap Micro 5.3 | sudo | before 1.9.9-150400.4.26.1 | 1.9.9-150400.4.26.1 |
| Red Hat:enterprise_linux:8::baseos | sudo | before 0:1.9.5p2-1.el8_9 | 0:1.9.5p2-1.el8_9 |
| Red Hat:enterprise_linux:8::baseos | sudo-debuginfo | before 0:1.9.5p2-1.el8_9 | 0:1.9.5p2-1.el8_9 |
| Red Hat:enterprise_linux:8::baseos | sudo-debugsource | before 0:1.9.5p2-1.el8_9 | 0:1.9.5p2-1.el8_9 |
| Red Hat:enterprise_linux:9::appstream | sudo-debuginfo | before 0:1.9.5p2-10.el9_3 | 0:1.9.5p2-10.el9_3 |
| Red Hat:enterprise_linux:9::appstream | sudo-debugsource | before 0:1.9.5p2-10.el9_3 | 0:1.9.5p2-10.el9_3 |
| Red Hat:enterprise_linux:9::appstream | sudo-python-plugin | before 0:1.9.5p2-10.el9_3 | 0:1.9.5p2-10.el9_3 |
| Red Hat:enterprise_linux:9::appstream | sudo-python-plugin-debuginfo | before 0:1.9.5p2-10.el9_3 | 0:1.9.5p2-10.el9_3 |
| Red Hat:enterprise_linux:9::baseos | sudo | before 0:1.9.5p2-10.el9_3 | 0:1.9.5p2-10.el9_3 |
| Red Hat:rhel_eus:8.6::baseos | sudo | before 0:1.9.5p2-1.el8_6 | 0:1.9.5p2-1.el8_6 |
| Red Hat:rhel_eus:8.6::baseos | sudo-debuginfo | before 0:1.9.5p2-1.el8_6 | 0:1.9.5p2-1.el8_6 |
| Red Hat:rhel_eus:8.6::baseos | sudo-debugsource | before 0:1.9.5p2-1.el8_6 | 0:1.9.5p2-1.el8_6 |
| Red Hat:rhel_eus:8.8::baseos | sudo | before 0:1.9.5p2-1.el8_8 | 0:1.9.5p2-1.el8_8 |
| Red Hat:rhel_eus:8.8::baseos | sudo-debuginfo | before 0:1.9.5p2-1.el8_8 | 0:1.9.5p2-1.el8_8 |
| Red Hat:rhel_eus:8.8::baseos | sudo-debugsource | before 0:1.9.5p2-1.el8_8 | 0:1.9.5p2-1.el8_8 |
| Red Hat:rhel_eus:9.0::appstream | sudo-debuginfo | before 0:1.9.5p2-7.el9_0.4 | 0:1.9.5p2-7.el9_0.4 |
| Red Hat:rhel_eus:9.0::appstream | sudo-debugsource | before 0:1.9.5p2-7.el9_0.4 | 0:1.9.5p2-7.el9_0.4 |
| Red Hat:rhel_eus:9.0::appstream | sudo-python-plugin | before 0:1.9.5p2-7.el9_0.4 | 0:1.9.5p2-7.el9_0.4 |
| Red Hat:rhel_eus:9.0::appstream | sudo-python-plugin-debuginfo | before 0:1.9.5p2-7.el9_0.4 | 0:1.9.5p2-7.el9_0.4 |
+11
Same product
sudo project: all recordsOther highest-scoring records for the same primary product.
- CVE-2021-3156Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root KEV91Now
- CVE-2025-32463Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf from a user-controlled directory is used with the -KEV78This week
- CVE-2019-14287In Sudo before 1.8.28, an attacker with access to a Runas ALL sudoer account can bypass certain policy blacklists and session PAM modules, a54Plan
Published before and after this one in the same product
- ← EarlierCVE-2023-27320Feb 28, 2023 · Sudo before 1.9.13p2 has a double free in the per-command chroot feature.28Monitor
- ← EarlierCVE-2023-28486Mar 15, 2023 · Sudo before 1.9.13 does not escape control characters in log messages.21Monitor
- Later →CVE-2023-42465Dec 22, 2023 · Sudo before 1.9.15 might allow row hammer attacks (for authentication bypass or privilege escalation) because application logic sometimes is28Monitor
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 |
|---|---|---|
| CBL Mariner 1.0 ARM | 1.9.13p3-1 · sudo | Microsoft (MSRC) |
| CBL Mariner 1.0 x64 | 1.9.13p3-1 · sudo | Microsoft (MSRC) |
| almalinux:sudo | 1.9.5p2-10.el9_3 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:sudo-python-plugin | 1.9.5p2-10.el9_3 · AlmaLinux:9 | Package registry (OSV) |
| debian:sudo | 1.9.13p1-1 · Debian:12 | Package registry (OSV) |
| opensuse:sudo | 1.9.9-150400.4.26.1 · openSUSE:Leap Micro 5.3 | Package registry (OSV) |
| red hat:sudo | 0:1.9.5p2-1.el8_6 · Red Hat:rhel_eus:8.6::baseos | Package registry (OSV) |
| red hat:sudo-debuginfo | 0:1.9.5p2-7.el9_0.4 · Red Hat:rhel_eus:9.0::appstream | Package registry (OSV) |
| red hat:sudo-debugsource | 0:1.9.5p2-7.el9_0.4 · Red Hat:rhel_eus:9.0::appstream | Package registry (OSV) |
| red hat:sudo-python-plugin | 0:1.9.5p2-7.el9_0.4 · Red Hat:rhel_eus:9.0::appstream | Package registry (OSV) |
| red hat:sudo-python-plugin-debuginfo | 0:1.9.5p2-7.el9_0.4 · Red Hat:rhel_eus:9.0::appstream | Package registry (OSV) |
| suse:sudo | 1.8.27-4.38.1 · SUSE:Linux Enterprise Software Development Kit 12 SP5 | Package registry (OSV) |
| suse:sudo | 1.9.9-150400.4.26.1 · SUSE:Linux Enterprise Micro 5.3 | 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.
Credits
All researchersFinders, 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
- low · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- Low
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-116 · Improper Encoding or Escaping of OutputCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Change log
- Fix✗ → ✓
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References
Show all references (4 more)Show less
Vendor advisories and official records. Exploit/PoC links are deliberately left out.