How severe is CVE-2017-18199?

CVE-2017-18199 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-18199 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-18199?

CVE-2017-18199 affects Gnu Libcdio. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-18199?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-18199 published?

CVE-2017-18199 was published on 2018-02-24 and last updated on 2026-06-17.

CVE-2017-18199

CVE-2017-18199 is a medium-severity vulnerability in Gnu Libcdio with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Gnu Libcdio
Published: 2018-02-24
Last modified: 2026-06-17

Description

realloc_symlink in rock.c in GNU libcdio before 1.0.0 allows remote attackers to cause a denial of service (NULL Pointer Dereference) via a crafted iso file.

Frequently asked questions

What is CVE-2017-18199?: realloc_symlink in rock.c in GNU libcdio before 1.0.0 allows remote attackers to cause a denial of service (NULL Pointer Dereference) via a crafted iso file.
How severe is CVE-2017-18199?: CVE-2017-18199 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-18199 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-18199?: CVE-2017-18199 affects Gnu Libcdio. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-18199?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-18199 published?: CVE-2017-18199 was published on 2018-02-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gnu:libcdio:*:*:*:*:*:*:*:*

More vulnerabilities in Gnu Libcdio

CVE-2017-18201 — Critical (CVSS 9.8): An issue was discovered in GNU libcdio before 2.0.0. There is a double free in get_cdtext_generic() in…
CVE-2017-18198 — High (CVSS 8.8): print_iso9660_recurse in iso-info.c in GNU libcdio before 1.0.0 allows remote attackers to cause a denial of service…
CVE-2024-36600 — High (CVSS 8.4): Buffer Overflow Vulnerability in libcdio 2.2.0 (fixed in 2.3.0) allows an attacker to execute arbitrary code via a…
CVE-2007-6613 — Medium (CVSS 5.0): Stack-based buffer overflow in the print_iso9660_recurse function in iso-info (src/iso-info.c) in GNU Compact Disc…

All CVEs affecting Gnu Libcdio →

Other CWE-476 (NULL Pointer Dereference) vulnerabilities

CVE-2022-36648 — Critical (CVSS 10.0): The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier,…
CVE-2020-14500 — Critical (CVSS 10.0): Secomea GateManager all versions prior to 9.2c, An attacker can send a negative value and overwrite arbitrary data.
CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
CVE-2026-46195 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building…
CVE-2026-31657 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by…
CVE-2026-31436 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor…

Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →